Variables

8/26/2013

Read the article below from the Foss Science Stories "Variables" book. Then, watch the video about musical instruments. When you're finished, answer the following questions.

According to the video, if a saxophone has a shorter pipe, the pitch of the instrument will be higher. Pretend you're the scientist studying the instrument. While trying to figure this out, you had to follow the scientific process.

Your task:
What would the tested variable be? Additionally, what would two of the controlled variables be?
Be sure to support your response with evidence from BOTH the article and the video!

Variables article- "What Scientists Do"

Musical Instrument Video

CCSS.ELA-Literacy.RI.5.1
CCSS.ELA-Literacy.RI.5.4
CCSS.ELA-Literacy.RI.5.7
CCSS.ELA-Literacy.R.I.5.9
CCSS.ELA-Literacy.W.5.2
CCSS.ELA-Literacy.W.5.4

196 Comments

Katie

10/2/2013 05:02:42

Cool!

p francis

10/22/2013 01:35:15

i know it is cool

vishnu

10/11/2013 03:08:43

I think the video was interesting

nicholas#5

10/11/2013 03:28:59

i say the same thing

Smiley#12(Elliot)

10/11/2013 03:34:16

The possible variables are:
1.The number of valves the musician presses
2.The length of the pipe
3.how hard the musician blows
The tested variable would be the valves the musician presses because that will change the length of the pipe
and will affect the results the most.
The 2 controlled variables will be the amount of air the musician blows into the instrument
and the valves the musician presses because those
2 variables are most likely to change the outcome of the experiment.

Cottone #28

10/17/2013 05:10:55

Same here.

Ria Smiley14

10/11/2013 03:09:17

Well, the tested variable would be how short or long the instrument is. And the controlled variable would be how high or low the sound is.

Ria Smiley14

10/11/2013 03:11:05

cool stuff

14Smiley

10/11/2013 03:27:11

The higher the sound, the shorter the sax. The claim is from the video which said the claim. If i were a scientist, i would test my claim, organize the the data, and draw conclusions. my conclusion is that my claim is true because of the evidence in the video.

Smiley 12

11/6/2013 00:16:01

Claim:pressing valves changes the pitch Evidence:pressing valves changes the space inside the instrument Reasoning:Since pressing valves changes the amount of space,it changes how air vibrates,thus changing the pitch.

Smiley15

10/11/2013 03:09:56

A variable Is something you can change like a key on an saxophone changes the pitch

Smiley Sandhya#16

10/11/2013 03:16:41

A tested variable is something you can change,like the keys or how long and short the instrument is,and a controlled variable is the outcome,in this case the sound.

Smiley*Sandhya*#16

10/11/2013 03:27:32

A bigger instrument means a lower pitch,a smaller instrument makes a higher pitch,in the video,it says that when it's a bigger instrument,more air goes through,and it makes a lower sound,and when you press keys it makes the air go differently and makes a different sound.

Smiley16

10/11/2013 03:29:05

Interesting...!

Asesh

10/11/2013 03:11:50

The bigger the sax ,the lower the pitch

nicholas#5

10/11/2013 03:19:18

that is what they said we saw is

asesh

10/11/2013 03:21:44

I know

smiely#7sujana

10/11/2013 03:22:09

I agree Asesh

Asesh

10/11/2013 03:24:47

My evidence is that early in the video they stated this

Smiley11

10/11/2013 03:13:58

variable is a something that give change to the thing. There is a lot of variables like for instruments , more airs make the sound lower.

Elin Smiley 11

10/11/2013 03:32:15

In article , they had 2 plants and they gave water to only 1 plant.The other plant died. So, I know that plants need water. In video , They used 4 kind of saxophone.Soprano,elto,tanner,baritone. The bigger has more lower sound.So, I know that more air makes the sound lower.

vishnu

10/11/2013 03:16:24

now I know that there is no such thing as failing in science

vishnu/smiley 21

10/11/2013 03:31:13

I think the reason that the sax phone is loud is that it is because the placement of the mouth piece matters. In the video the person said that the different types of sax phone have different placement of the mouthpiece makes different sounds

Melina/smiley #2

10/11/2013 03:17:17

I think that the more air = A low sond.

Melina/smiley #2

10/11/2013 03:27:21

It said that in the video.

Evan/Smiley/17

10/11/2013 03:17:25

I think the variable is how much space the inside of the instrument. That is what controls how low or high the pitch is. And what I just said is the controlled variable.

smiley16

10/11/2013 03:33:26

what about the tested variable?!

Evan/Smiley/17

10/11/2013 03:37:53

This is the evidence. The video said the more space in the instrument the lower sound it would make and all instruments make sounds by vibrations.

nicholas ms.smiley #5

10/11/2013 03:17:42

i think that was interesting because i did not now that until now hi!

smileysrishti1

10/11/2013 03:18:46

the bigger any instrument,the lower the pitch. Smaller equals higher pitch.

MEgan smiley

10/11/2013 03:26:50

that makes sense

#srishtismiley1

10/11/2013 03:34:07

the variable is the difference in pitch.
evidence in the video is the person says the bigger airspace inside the instrument, the lower the pitch. the evidence in the article says that there need to be multiple thingies to test a good result. good or bad.

smielyelliot#12

10/11/2013 03:19:40

hi vishnu

smileyerik28

10/11/2013 03:20:02

The controlled variables will be the same saxophone and the same person. The tested variable will be the number of fingers down because they take up space and will make the pipe sorter

SmileyBrian24

10/11/2013 03:21:14

Some instruments, like the clarinet, have pads that change the amount of space when pressed. That is a variable for woodwinds.

SmileyBrian24

10/11/2013 03:38:38

In the article, water could change if the plant will live. For woodwinds, the valves and how much sound will live that you can hear. In the video,
it says that the sound vibrates off the valves. If the valves are not there, the air will go through the instrument and no sound will live or no high/low pitches will be played.

Lance/smiley/18

10/11/2013 03:21:38

The length pipe would be tested. The larger the pipe lower the sound

LANCE/SMILEY/18

10/11/2013 03:36:59

In the video it said that the bigger instrument the lower the sound the more air you have to put to make it higher pitch. In the passage it said that you can change almost anything.

smiley swarna#19

10/11/2013 03:23:09

The tested variable for these instruments is what we can change. So it is how long or short the instrument is. The controlled variable is how high or low the sound is. If the instrument is long and big the sound is lower.

smiley swarna#19

10/11/2013 03:38:21

My claim is that the tested variable would be how long or short the saxophone is and the controlled variable(s) would be the sound, how high or low. My Evidence is that in the video it said, "The bigger the saxophone, the lower the sound. The smaller and shorter, the higher the sound." Also it talked about variables in the passage. My reasoning is that more air= the lower sound because when you blow the air inside moves.

SmileyAlex15

10/11/2013 03:25:18

If you test a variable you have to have two sets the same plants and same settings the article says you need two of the same plants with the same heat temperture to test if A plant needs water.

smiley Megan #3

10/11/2013 03:25:42

Claim: The more air that a band instrument has, the lower the sound.
Evidence: In the video, it said that the trombone has a sliding pipe that changes into the path that the air takes, causing it to have a lower or higher sound. The clarinet and flute have values that change the amount of space in the instrument. The evidence from the article is that you have to control all the instruments except for the one that you are testing.
Reasoning: The more air in the instrument, the lower the sound. That makes sense that the more air in the instrument the lower the sound because the more air something has, the longer you can do something. The more air a a human being has, the slower your heart beats and the more calm you are.

nice claim evidence reasoning

10/11/2013 03:29:22

nicholas#5

10/11/2013 03:30:56

nice claim

smiley16

10/11/2013 03:35:47

cool claim evidence reasoning say something about the tested variable and controlled variable

smiely#7sujana

10/11/2013 03:26:20

the bigger the instrument the more spase it will take

Yeyeon/Smiley/10

10/11/2013 03:28:37

The more air is inside the instrument ,the lower the sound is.

Smiley/Pehar#23

10/11/2013 03:39:59

claim- the more air in the instrument the lower sound the instrument makes.
evidence- in the video they told that the Trombones have a moving thing and if we move it we get different notes just like that in saxophone it depends on the mouth piece. In the artical they told that you should always test your hypothesis and then see the outcome.

nicholas

10/11/2013 03:33:39

i think the artical was like saying the same thing

vishnu

10/11/2013 03:34:57

The variable can or cannot be controlled because if you water your plants and the still don't grow that is a varible that cant be controlled.If it grows it is a cobtrolled variable

Smiley/13/Hannah

10/11/2013 03:38:29

Two variables for the 4 saxophones are, one of the variables is when there is a bigger space in one of the saxophones, when you blow into the saxophone it will make a deeper/lower sound. The evidence from the video is when you have a bigger space in the instrument and you blow into the instrument the sound will be deeper.

Smiley/13/Hannah

10/13/2013 08:09:22

The last variable is when you have less space in one of the saxophones or flute or clarinet, when you blow into the instrument the sound will have a higher pitch. The evidence from the video is that when you have a smaller space in one of the saxophones or flute or clarinet, when you blow into the instrument the sound will have a higher pitch.

Smiley/13/Hannah

10/13/2013 08:22:40

For both of the variables the evidence from the article is, that those were two different variables because when you have less space in an instrument what happens?, you have a higher pitch sound and when you have more space in an instrument what happens?, the sound is lower/deeper.To compare these variables to the article the article has a picture of two plants, and the person in the picture had a question and it was do plants need water. So he tried an expierament. In the picture there were two plants and the person would water both plants differently. One pot of plants got less water and the other got more. It showed a picture of one plant wilted and the other not wilted. We noticed that a plant without water would die.

Stern #1

10/15/2013 07:08:30

I agree with you. It makes sense that if the tube is smaller it will make a higher pitch because the sound has less room to vibrate. Also, with the bigger tube it has more room to vibrate so the instrument will have a deeper sound.

smileysohil22

10/11/2013 03:38:45

Claim:the shorter the saxophone the higher the pitch.Evidence from article:like getting less rain if a sax gets less air different results will come meaning different sounds will come out. Evidence from the video:She saud that the bigger the sax the the deeper the sound so the shorter the sax the higher the sound.

SmileyAarushi25

10/11/2013 03:38:45

My claim is that the bigger the instrument the lower the pitch and the smaller the instrument the higher the pitch. My evedince for my claim

smiley-06 :) Shraddha

10/11/2013 03:38:53

Claim:if a saxophone has a shorter pipe, the pitch of the instrument will be higher

Evidence from the video: the video they said that the bigger the space in the instrument the lower the sound so if the sax was shorter the pitch was higher

Evidence from the article: the rain is like air because because without rain/water a plant will die and the less air in a instrument the higher pitch it will make.

stern17

10/15/2013 07:05:53

i agree with you the shorter the pipe thepicht would be higher

Ashley/Sheko/26

10/11/2013 03:39:01

Claim: My claim is that the shorter the saxaphone pipe the higher the higher the saxaphone sound will be.

Evedince:The evedience i have is that acording to the viedo it said the more the air space the instrument has the lower the sound the instrument will have.So that means the less air space the instrument has the higher the sound it will have.The controlled variubale in this expermient

Joey/Smiley/18 link

10/11/2013 03:40:59

I have no reference to the video because the computer was muted and I could not hear it. However, I think that it's the way you blow that makes higher or lower sounds. So in the articule, by testing your theories, you get a hypothesis.

pranav

10/11/2013 03:41:32

the bigger sax the lower the sound

stern 13

10/14/2013 04:42:47

The tested varible would be how big and how small the pipe would be,because the smaller the pipe the higher the sound and the bigger the pipe the lower the sound.Pluse the larger the air space inside the insterment makes a lower sound.My reasoning is if you were to test this at home all of this will happen to you like if you have a bigger pipe and you blow it will make a low sound if you or your freind uses a smaller pipe then it will make a higher sound.

stern 13

10/15/2013 06:48:01

i want to add something to my reasoning witch is these thing would happen because it just depends on what verible your testing

cottone22

10/17/2013 05:01:15

good reasoning

cottone

10/17/2013 05:05:28

i thinking the same claim

Stern 28

10/14/2013 04:44:00

claim:the bigger the instrument the lower the sound.Evidence:during the video they said that the more space the lower the sound .Also they said that the higher the pitch the smaller and the lower the pitch the bigger .Reasoning:when you blow in the instrument it vibrates and produces sound if you have more space you have a lower note

stern28

10/15/2013 05:58:05

the tested variable in the video is how high or low the pitch of the instrument is.Ther are other variables that you do not test in the experiment called controlled variables.In this case the controlled variables would be how you hold the instrument what type of instrument you are testing andhow much air you put in while you are blowing .when I watched the video I saw their were other instruments too,so one of the variables would be what kind of instrument.Also in the video I saw that how you hold the instrument matters.And when (in the video)they put different amounts of air t would affect the sound.And now since I know all the controlled variables and what I am testing I know how to test my hypothesis

Stern #6

10/15/2013 06:47:01

You have a lot of spelling errors but overall it is really good.

Stern #6

10/15/2013 05:59:12

In this experiment, the tested variable would be the size of the sax. Some of the controlled variables would be the type of instrument (obviously) and how much air I blow into the instrument.
The thing that you are trying to find out is "Does the size of the sax effect the pitch of the sound." So the variable that you are TESTING out is the size of the sax. So the TESTED variable would be the size of the sax. In the video it said that there are different types of saxes. In the video it said that there are many instruments that involve blowing like brass and woodwind instruments. You are only trying to test out the saxes so you only use that type of instrument. That is one CONTROLLED variable. Another controlled variable would be how hard you blow into it. In the article it says that your experiment has to be controlled. If you are blowing harder into 1 type of sax and softer in the other it would not be controlled.
Now that I only have 1 tested variable and all the variables controlled, I can conduct my experiment knowing that it will be controlled.

Stern #26

10/15/2013 07:00:02

You should be a scientist when you grow up Marcus!

P.S. My REAL blog is after Stern #23's.

Stern #26

10/15/2013 07:03:50

Wait, whose Marcus?

sorry Mrs. Stern...

Stern9

10/15/2013 06:43:31

Claim:The bigger the instrument the lower the sound.

Evidence:When the pipe is longer the lower sound it has because there is more room for the sound to go through.For example when you take the flute and you blow air and you push the keys to make it higher that happens because when you push the keys there is less space for the air to go through so it makes a higher sound.

Reasoning:When you blow air in the sax,flute and clarinet it viberates when you blow air to make a sound.

Sturn20

10/15/2013 06:49:34

the bigger the air space the lower the sound.This happens because the less air the lower the sound.The evidences is that if you try this this claim would work.The reason this happens is because the air has more space and if the air has more space then the pitch of the instrument would be lower than the one with the less space.

Stern#4

10/15/2013 06:57:54

Um #20 you spelled Stern wrong!

Cottone4

10/17/2013 05:12:00

Its okay Stern4

stern25

10/15/2013 06:49:57

If I were a scientist studying the pitch of an instrument I would need to conduct an expirement.What I read from the article, it said I needed a tested variable and controlled variable. So my tested varible would be the size of the instrument. My controlled variable would be the type of instrument (sax).
In the video it said the bigger the sax the lower the pitch. And in the article it said that factors and conditions can change and it might affect the instrument and in this case the size of the instrument affects the sound.
So I conduct my expirement with everything controlled but the size. so now that I know my expirement is a controlled expirement I can get an exact answer.
.

Stern #18

10/15/2013 06:50:36

Claim: My claim is that the tested variable is the size of the instrument and that the controlled variables are the amount of air I blow in to the instrument and the way I hold it.
Evidence: My evidence is that different types of the same instrument can make different pitches. I would also need to control the amount of air i blow into it because if I changed the way I blow into it, it could louder or softer sound depending on the force of the air i blow in. My last piece of evidence is that the way I hold it would affect the instrument because it will cause a difference in the sound of the instrument because I can be holding a diferent note.
Reasoning: My reasoning is that all these variables could cause a major change in the instrument because they all affect the sound produced by the instrument.

stern #27

10/15/2013 06:51:04

the tested variable is the bigger the space. the deeper the sound the smaller he space the higher the pitch. the controlled varible is the shape of the sax and where i put my fingers or hands. in the video it shows that all different size of the sax and it says the bigger the space the deeper the sound the smaller the space the higger the pitch and this is how i know the bigger the space the deeper the sound and the smaller the space the higger the pitch also i also got to hear they blow in a small flute and the space was small so the pitch was higger this shows me that the bigger the space the deeper the pitch the smaller the space the higger the pitch .that is how i know that the bigger the space the deeper the sound the smaller the space the higger the pitch. .

Stern #6

10/15/2013 06:52:04

Who spelled "Stern" wrong.

Stern #7

10/15/2013 07:11:42

Stern 20 did.

Stern23

10/15/2013 06:53:04

Claim: My tested variables would be how long long the pipe is and my controlled variables would be how much air I blow in to the instrument as well as the way I hold the instrument

Evidence: "What Scientists Do", it tells me that if you are going to do a controlled experiment you have to have one tested variables and the rest has to be the same. The video said that the bigger the sax the higher the sound and the smaller the sax the lower the sound. More air = lower sound.

Reasoning: Well I watched the video and read the articles. So know I can do my experiment by knowing what to do like changing one tested variables and keep the rest the same.

Stern #26

10/15/2013 06:53:21

If I were a Scientist testing out a saxophone to test the pitch of the instrument, I would need to conduct an experiment and my tested variable would be a short pipe which would produce a higher sound than a longer pipe for the sax.My examples are: that from the ARTICLE, I learned that you must have a variable you are testing, and two other variables that are "controlled". In the VIDEO, I learned that to keep the sound controlled, you must [again] CONTROL the amount of air blown into the instrument. To make sure this makes sense and summarizes this, is that now I know the controlled and tested variables, I can now test a controlled experiment which includes a shorter pipe for the saxophone and how it affects the instrument.

Stern 24

10/15/2013 06:54:06

Different types of saxophones make different sounds because from reading the article "What do scientist do" ,I know that I need one tested variable and that tested variable and then controll the other variables.When I was watching the video, I saw four types of saxophones from small to big the video also said the longer the tube the lower the pitch and the shorter the tube the higher the pitch.I know this because it depends on how much space is in the instrument,how you are holding it and how much air you blow into it.

Mrs.Stern#4

10/15/2013 06:55:09

Claim:The wider and longer the instrument the lower the sound,and the shorter and skinnier the instument the higher pitched the sound.
Evidence:The evidence that supports my Claim is about Variables,for example the Tested Variable is what makes sound lower or higher in the insturment.And the Independent Variable is the instruments width.
Reason:The Reason that supports my Claim is that if the space is taken up there would be a higher pitched sound,because you need space to blow in the tube.So the width of the blowing tube counts a lot for whenever the insturment's is high pitched or low pitched!

Stern- *22

10/15/2013 06:56:44

My tested variable would be the length of the pipe my controlled variable would be the way I hold my instrument to affect the length of it.In the article "What scientists do" It says you must have a controlled variable to make an experiment work right and to be tested correctly.In the video it states the more air inside the instrument the longer the pitch will be low if you blow a little air it will make a short low note. It also states that if the length of the tube turns shorter you will get a higher sound. In the video it shows the person in the middle holding the instrument in different ways like when she played the recorder she put her hands over the holes of the recorder to affect the sound it made. Now I know what tested and controlled variables are and I can know that my experiment will be a controlled experiment.

Stern #12

10/15/2013 06:57:04

C: In this experiment,my tested variable would be the length of the pipe.My controlled varibles would be how much air I blow into the instrument and the way I hold the insturment.

E: I control the amount of air I blow into the into the insturment each time, in order to keep the experiment controlled.

R:I know the tested and controlled variables, I can conduct my experiment and I know that it will be a controlled experiment ,where the only thing that I am changing is the size of the pipe.

Stern 16

10/15/2013 06:58:23

Claim: the tested variable is how much space is inside the instrument. The controlled variable is the way you hold the instrument, and how you blow into your instrument.
Evidence: In the article, "What scientists do", it said that you need only one tested variable so you know what variable did what. If you want to test other things, you need to do another experiment. The tested variable was how much water each plant got. In the video, it said that the way you hold the instrument effects the sound as well as how you you blow into it. The more space the instrument has, the lower the sound. The less space the instrument has, the higher the sound.
Reasoning: Because there is more space in the instrument there is more space for sound to tarvel through. If there is less space, there is less space for sound to travel through and the pitch is higher.

stern #17

10/15/2013 07:00:17

claim: the larger the insterment the lower the pitch

evidence:when the sax pipe is longer the lower the pitch and the shorter the pipe the higher the sound also when i saw the video i saw all kinds of saxaphones small,large and more.

reasoning: now that i know that when flutes,sax and more get blowed on it makes nosie also it vibrates like a violin or a vibratig chair.

stern#17

10/15/2013 07:02:46

sorry about spelling mistakes

Stern #7

10/15/2013 07:08:44

Don't worry, it's okay.

Stern #1

10/15/2013 07:04:01

Claim: If I was trying to answer my question about the pitch of a saxophone, the way I would try to answer my question by conducting a controlled experiment.
Evidence: In the article "What Scientists Do" it says that to answer a scientific experiment. If professional scientists do this, then I think it would be useful for learning in the classroom too. My second piece of evidence is that in the article it said that to get a answer to a scientific question, you need to be conducting a controlled experiment, witch means you are controlling two variables. My controlled variables are the group of instruments and the amount of air I would blow out. My third piece of evidence is that in the video I heard that the lady mentioned that each instrument makes a different sound, so I could not just play 1 instrument and get my answer. I need to do a full experiment to get my answer. If I only used 1 instrument I would probably get a wrong answer.
Reasoning: The reason why I would need to conduct a controlled experiment is because I need a lot of data to come up with my answer, and a controlled experiment does that. Also, if I have a scientific question, the best and most reasonable way to get my answer is by doing a controlled experiment.

stern #12

10/15/2013 07:09:06

i like how you talked about the time for kids.

Stern#7

10/15/2013 07:15:34

Me too!

stern10

10/15/2013 07:04:15

Claim: My tested variable would be the size of the saxophone, the controlled variable would be how much air I blow into the saxophone and the material of the saxophone.
Evidence:The bigger the sax the lower the sound it makes.If you do not control how much air you blow into the saxophone or else you won't get the same result as other scientists do,because if you blow a little bit in one saxaphone,and a lot on the other the sounds will be different.
Reasoning:This happens because it vibrates and makes some noise if you have more space it will produce a lower sound.

stern#15

10/15/2013 07:05:16

My variable is the more air space in an instrument the lower the sound. I saw when a person plays a woodwind, there's valves to press on so that it can trap the air inside to make the notes higher. On the other hand, notes played on the saxophone are lower because they have more air space and they are bigger. This is why more air = lower sound.

Stern#7

10/15/2013 07:05:47

Claim: The tested varible would be the length of the pipe. Some of the controlled varibles would be the instrument, the keys that you press, and how hard you blow into it.
Evidence: In the video it showed 4 drifferent size saxaphones. All of them were the same instrument and had the same keys,but they all made drifferent sounds. In the article "What Scientists Do" it says that every expierment has one tested varible ,the one that you're testing. It also says that in order to have a controlled experiment all varibles but one have to be the same.
Reasoning: This makes sense because all the varibles but one are the same. Because only one was drifferent it must be the tested varible and the ones that were the same must be the controlled varibles.

Stern8

10/15/2013 07:13:03

Claim:The bigger the instrument the lower the sound, the smaller the instrument the higher the sound. I know that my tested variable would be the length of the pipe. My controlled variables would be the way I hold the instrument and how much air I blow into the instrument.
Evidence: From the article "What Scientists Do'' I know that there is a few controlled variables and also one tested variable. I know that how much air I blow into the instrument is a variable because from the video I know that some instruments have valves that limit the amount of air space so the instrument can have high sounds as well as low sounds.
Reasoning:Now that I know what the tested and controlled variables are I can do my experiment. My experiment will be a controlled experiment because the only thing I am changing the size of the pipe. I know I will get the most exact answer about how much the size of the pipe will effect the pitch of the instrument.

Stern #29

10/15/2013 07:13:16

If I were going to test out the pitch of a saxophone, my controlled variable would be how much air I blow into the saxophone.And the tested variable would be the size of the saxaphone. So I will need to blow the same amount of air to keep the experiment controlled. Now I can conduct the experiment and know it is a controlled one.

Claim:The bigger the pipe the lower the sound.

Evidence: During the clip they said the larger the air space inside the instrument and if you blow into it, the air inside the pipe moves or vibrates.And the smaller the pipe the higher the pitch. It is kind of like blowing bottles.The more water you have,then when you blow on top of it you get a higher pitch, but less the water the lower the sound you get,just like a saxophone but with water.

Reasoning:When you blow into the saxophone,the air inside vibrates and produces a lower note when the pipe is longer. But when the pipe is short the higher the pitch.

Stern #29

10/15/2013 07:13:38

stern#5

10/15/2013 07:16:51

In this expreiment the tested varible is te size of the saxophone.The controlled varbles are,what the saxophones are made out of,and how I hold the instrument.The claim would be that the bigger the saxophone the lower the sound.My evindence is that the biggger saxophones have more space for the air in them so,when I blow in it ,it would make a deeper sound or a lower sound.Also in the video it said that when the musicans blow in it the air moves so,that is probaly why bigger instruments make lower sounds.Also in the viedo it said that the more air the lower the sound.This shows that the bigger the saxophone the lower the sound and the smaller the saxophone the louder the pitch.

Alankar

10/15/2013 07:18:43

I think that the amount of air that travels through the saxophone changes the pitch of the saxophone. In other words, the amount of air you blow into the sax. matters, because it changes the pitch. that would be the changing variable. the 2 variables that will stay the same are; the size of the pipe, and how you hold the saxophone.
I say this because in the video, it says that the the more air you blow into the sax., the lower the sound you will get. the less you blow into the sax., the higher the pitch will be. I saw in the video that, the women was holding the instruments in the same way, and that she said the different sizes makes the sound change. In the article, "What Scientists Do" said that in a experiment(the real term is called a controlled experiment),you change only one variable. So I changed how much air you blow into the sax. The article states that, one variable can completely change the end results of the experiment. the articles example was, if you have 2 plants and water one every 2 days, and don't water the other one at all, but keep everything else the same. one plant will die, and the other one will live. In this experiment, the amount of water given to a plant could change the results of the experiment, why couldn't the amount of the air you blow into sax. change.
As you see, the amount of air you blow into a sax. can change the pitch, more air = lower sound, and less air = higher sound.

Stern#19

10/15/2013 07:19:42

Claim: In this experiment, the tested variable would be the size of the saxophone and some of the controlled variables would be the air you blow in and the notes you play.

Evidence: By reading the article " What Scientists Do" I know that all the variables have to be the same except one, that would be the tested variable. In the video, I saw that each different size saxophone made a different pitch and that is how I know that the tested variable would be the size of the saxophone. When I was watching the video, I saw that when she played different notes, the pitches went higher or lower. This made me think that you would have to play the same note on all the different size saxophones. Also, I saw that you play instruments by blowing into the instrument. So you would have to control the amount you are blowing into the instrument.

Reasoning: By knowing the tested and controlled variables, I will be able to conduct a fair experiment and come up with a true conclusion.

cotone-10-21 link

10/16/2013 07:09:23

My claim is: the longer the pipe on a wind instruments the deeper the sound because the air must travel further.

My evidence is: if you blow into several sized sax’s the largest will sound the deepest.

My reason that the air in the instrument has more space to spread out making a deeper sound.

Cottone #28

10/17/2013 05:06:38

I really like how you stated your claim. However, I think you could add more to your reasoning and your evidence.

Cottone26

10/16/2013 09:47:31

The bigger the pipe the lower the sound, and the smaller the pipe the higher the sound.The variables that stayed the same are how much air you blow into the instrument and how you hold the instrument.The variable that will change is how big the pipe is. According to the video, the bigger sax made lower sounds, and the smaller sax made higher sounds. The bigger saxes have larger pipes so more air can pass through making a lower sound.The smaller saxes have smaller pipes so not as much air can pass through making a higher sound. In the article “What Do Scientist Do,” it states that you only can change one variable at a time or the outcome will be different, and the experiment won’t be exact. I know that it is a controlled experiment because the only thing that is changing is the size of the pipe. This method will get the most exact result.

cottone-10-21 link

10/17/2013 04:48:46

looks great, like the words

Cottone 5

10/17/2013 05:08:27

That was very good.

Cottone #4

10/16/2013 10:39:10

I I agree with Alankar. My Claim: I think that the bigger the pipe the lower the noise because the air has to travel a further distance.
Evidence: I learned that with variables that you can only change 1 variable at a time. In this case the variable is the pipe size. Reasoning: An example of that will be if you have to same plant seed and evey thing but you change the amount of water. One would get more water than the other. The one that got more water grew more. Changing one variable at a time is called a controlled experiment.

cottone-10-21 link

10/17/2013 04:53:51

good jod but dint write names

cottone-10-21 link

10/17/2013 04:56:31

i meant dont

COTTONE#8

10/16/2013 12:55:38

Claim:The longer the pipe the louder the sound.
Evidence:I know this because in the video it show different size saxophone and that is how I know I would need the pipe to be a tested variable. In the video I also saw the way you hold it makes a different.
Reason:I know I should hold the saxophone the same way and blow the same way so I don't change more than one variables so the thing I am changing is the size of the pipe. That way , I will know my right answer

cottone22

10/17/2013 04:54:09

if i was a scientist about the saxophone i would test how the pitch changes by the pitch the tested variable would be the length of the pipe my controlled variable would be what key you press and how hard you blow also the way you put your saxophone in the article it said i needed to change one variable to make shere my test was right the reason i know mine is because in the vidio it said that the longer the pipe the higher the pitch the shorter the pitch the low the sound this happons beacause the shorter the pipe the less space the longer the pipe the more space

cottone-10-21 link

10/17/2013 05:05:28

great work!!

Cottone15

10/17/2013 04:54:51

Science variables CER
Claim: for saxaphones the more air the lower the sound the less air the higher the sound
Evidence:if you have a bigger saxophone more air can swish through the instrument which makes a lower sound. But if you have a smaller saxophone less air can swish through the instrument which makes a higher sound.
Reasoning:Saxophones have keys right? (the things that you press so the sound comes out) if you press on it it will use the air inside the saxophone because you blow in it if you have a bigger instrument more air can swish which makes a lower sound.

cottone 2

10/17/2013 04:55:10

claim: the bigger the sax, the lower the sound.my tested variable would be the pipe. My controlled variable would be how much air and the notes i press.
Evidence:when you play the largest sax, Baritone saxophone, has a lower sound when you play it.
Reasoning:this happens because it depends on what instrument you play and how much air you blow into it. for the baritone saxophone, if you blow lightly, you will get a low sound. but if you blow hard, you will get a really low sound

Cottone 27

10/17/2013 04:55:47

Claim: My claim is that the smaller the pipe is on an instrument the higher the sound is. And my controlled experiment is the way I hold it and how much air we put into it.

Evidence: My evidence is that if you us a recorder (instrument) and compare it to a saxophone the saxophone is larger and makes a lower sound and the recorder makes a higher sound because it is smaller. Let’s do another example. How about a violin. There is a small, half size, ¾ size, and a large. The large makes the lowest sound because it is the most hallowed. And the small violin makes a smaller louder sound because it has less room for the vibration come through.

cottone23

10/17/2013 04:58:33

If I were a scientist I would conduct an experiment on if the shorter the pipe the higher the sound the longer the pipe the lower the sound. In order to conduct this experiment I would need a saxophone with a long pipe and one with a shorter pipe. Now I can conduct the experiment. In the video I was watching . Since the pitch I was what I was testing the rest would have to stay the same in order for this to be a controlled experiment. In the video I was watching , there was a demonstration on how to blow into the instument. So that would be one of my controlled variables. And how hard I would blow would also be a controlled variable. The variable I was changinging would be the pipe. Now that I know all of my variables I can conduct the experiment and get accurate results.

Cottone #20

10/17/2013 05:06:26

I like how you used evidence from the video, but you still used your own words that were very specific and accurate.

Cottone6

10/17/2013 05:01:37

In the video it showed a group of saxes. I t said the bigger the sax the lower the sound. I agree with that because if you took an example like a bell,you could figure it out. If you have a small bell it would make a high pitch sound. The big one would make a deeper sound. This happens because it vibrates.For example,if you blow in a sax the sound vibrates until it gets out. That is how the sound comes out.this will happen with many blowing instruments and many banging instruments.( Drums, bell, etc...)

Cottone #28

10/17/2013 05:02:01

Claim: The smaller the pipe, the higher the pitch.

Evidence: From the Musical Instrument Video, it said that because of the different sounds from saxophones with different pipes, sometimes only one will play. Another example from the video was that the more air that got in, the lower the sound. Whatever it is, you can only change one variable at a time.

Reasoning: When you blow into a pipe, it makes a sound when the air moves. When you do something to change what note you are playing, it changes the amount of space in the pipe changing the sound.

cottone12 link

10/17/2013 05:02:53

Claim:The shorter the pipe the quieter the sound.
Evidence:I know this because in the video it sounded different because the air makes a difference.
Reason:The saxophone sounds different when there is more or less air.

Cottone #20

10/17/2013 05:03:01

Claim: If I were a scientist studying the variables of saxophones, I know that I would need to test only one variable. The length of the pipe would be my tested variable. How hard I press the keys or the direction I blow in could be my controlled variables.

Evidence: From the investigations that we did the past few weeks, I realized that a controlled experiment is when you test only one variable. In the video, her book had pictures of different types of saxophones. The shorter the pipe makes a higher sound.

Reasoning: I know that I can only change one variable in a controlled experiment because if you change too many, scientists can get confused, or it could cause them to lose data.

cottone13

10/17/2013 05:03:08

CLAIM: The bigger the sax, the lower the sound and The smaller the sax, the lower the sound.

EVIDENCE: The larger the air space inside the instruments the lower the sounds they make, this happens because the air inside the pipes moves or vibrates.

REASONING: now that we now the controlled variables the only thing we need to change is the size of the pipe.

MY RESOURCES: From the video I learned that the bigger the pipe the lower the sound and the smaller the pipe the higher the sound. From the article I learned what the controlled variables were.

Cottone #28

10/17/2013 05:04:42

,If I were a scientist testing out a saxophone to pitch the instrument, I would need to conduct an experiment. In this experiment, my tested variable would be the length of the pipe. My controlled variable would be how much air I blow into the instrument as well as the way I hold the instrument. From reading the article I learned that I must only test one variable at a time and that I must keep the rest of the variables the same. Because the variable I have to test is the sound made from the length of the pipe that would be my tested variable.From watching the video I saw that the way you hold the instrument makes a HUGE difference when it comes down to what pitch your instrument makes.Because that is not the variable I want to test, that would be one of my controlled variables.In conclusion, my tested variable would be the sound made from the length of the pipe and my controlled variable would be the way I hold the instrument.

Cottone 5

10/17/2013 05:06:09

Claim: To test the theory about the length of the tube, I would need to conduct an experiment. I would test if the longer the pipe the lower the sound is true. The variable I would change is the length of the tube. I would keep the amount of air and my hold the same.

Evidence: I know the experiment is controlled because I only changed one variable. If you test the different saxes, you would find these results. Also the video said this.

Reasoning: The video said so. Real scientists tested out the claim. It explains why flutes are very high pitch compared to other band instruments.(The flute is small and narrow)

cottone-10-21 link

10/17/2013 05:08:43

great work!! Add more detail next time

cottone14

10/17/2013 05:07:12

In this experiment, my tested variable would be the length of the pipe. In the video, they said that the more air, the lower the sound. In the video, different size saxophones make a different sound. Now I can conduct my experiment where the only thing I’m changing is the size of the saxophone.

cottone13

10/17/2013 05:09:23

Claim: The tested variable is the size of the pipe, the controlled variables are the way I hold the saxophone and how much air I blow into the instrument.
Evidence: In the article, “What scientist do” , I know that I need to have only one tested variable and the rest of the variables are controlled variables.
Reasoning: The bigger the saxophone, the more air it has inside. The more air the lower the sound the saxophone makes.

cottone17

10/17/2013 05:09:34

the tested varible would be what pitch the instrument made according to the video-claim
the pitch has to be higher or lower so the pitch makes a difference-evidence
its because that it is how you make the instrument control and let it move speed or slow.

cottone9

10/17/2013 05:09:49

cottone#25

10/17/2013 05:10:00

Claim: If I were a scientist testing out a saxophone to test the pitch of the instrument, I would need to conduct an experiment .The tested variable would be the length of the pipe, the controlled variable would be how much air I blow and how I put my hands.

Evidence: When I read the article what scientists do,I know that I need a controlled variable and a tested variable.In the video I saw that there were different kinds of saxaphones,and that they all make a different pitch.That is how I knew that the size of the pipe would be the tested variable.While I was watching the video I saw the women play an instrument by blowing air.So I knew that the air that I blew was the controlled variable.

Reasoning:I know that if I want a controlled experiment that I have to hold the instrument the same way , the amount of air I blow into the instrument the same.

Cottone4

10/17/2013 05:10:10

My Claim: I think that the bigger the pipe the lower the noise because the air has to travel a further distance.
Evidence: I learned that with variables that you can only change 1 variable at a time. In this case the variable is the pipe size.
Reasoning: Since the air has to travel a further distance in the bigger you have to blow longer for it to make the noise as for the smaller pipes the sound comes much quicker so it makes a higher noise.

cottone-10-21

10/17/2013 05:18:42

great work

cottone-10-21 link

10/17/2013 05:13:51

button o' fun

cottone-10-21 link

10/17/2013 05:16:01

botton o' fun that works

cottone11

10/17/2013 05:14:17

Information on saxophones
By:Aashika Ekambareswaran

If I was a scientist testing out a Saxophone to test the pitch of the instrument, my two controlled would be the size of the saxophone and another one would be blowing the same amount of air into the saxaphone. My tested variable would be the pitch of the saxaphone. I know that if the saxophone is a large size the lower the notes will be and the shorter the saxophone is the higher the notes will be. I know this because in the video they explained that. This happens because when you have a larger saxophone you have more space so you can blow more air so it makes a lower note but if you have a shorter saxophone you have lesser space so you don’t have space to blow as much air as the larger saxophone so it makes a higher note. So will doing this report on saxophones I learnt that the larger the saxophone the lower the sound but when you have a shorter saxophone you’ll get a higher sound.

cottone16

10/17/2013 05:18:33

Variables

Claim: my tested variable will be the length of the pipe and my controlled variable will be how much air I blow into the instument and thr way I hold the insturment
Evidence : reading “What Scientists Do “I learned that I can only have one testsed variabe at a time and have to controll the rest. Also in the musical insturment video, I saw that a longer pipe makes a lower sound and a shorter pipe makes a higher sound.
Reasoning : when I read the article and watched the video I know that the sixe of the pipe efects the sound and is the tested variable. The way I hold the instument and blow into is the controlled part of the experiment

Cottone21

10/17/2013 05:19:10

I would want to conduct an experiment if I were going to test out an saxophone.My tested variable would be the length of the pipe.My controlled experiment would be how much air I blow into the sax and the way I hold it.When I looked at the article" What Scientist Do", I know that I only need one tested variable and test the others.Also I saw in the video that different size saxophones different the pitch. Lastly while I was watching the video I realized their was a example of blowing into the sax then I knew that I need to control the amount of air I was blowing into the sax.

cottone21

11/18/2013 02:15:43

that the size effects the sound.Also the way i hold it

cottone#18 link

10/17/2013 05:19:34

how much air I blow into a instrument as well as I hold my instrument will be how i test my variables
In the video i saw that there was a different size saxophone and the sizes made the pitch higher or lower.
To do my experiment the different sizes of saxophones it has to be the only thing i change so i would get exact answer

Stern #3

10/17/2013 23:08:12

My claim is that the tested variable was how much space the sound had to vibrate inside of the pipes. The controlled variables were how much air I would blow into instrument as well as the way you hold the instrument.

My evidence is that if the saxophone is big like a baritone sax it has a lot of air inside of the tube. This causes the sound to vibrate longer inside of the tube. On the other hand, if a saxophone is small like the soprano sax tit has less space inside of the tube. This causes the sound to vibrate less inside of the tube.

My reasoning is that the bigger the instrument the lower the sound and the smaller the instrument the higher the sound.

cottone1

10/22/2013 10:16:17

Variables

Claim- Based on the article’s definition of variables, my controlled variable would be the length of the pipe and the tested variable would be the pitch.

Evidence- According to the video,it said that if the saxaphone had a long pipe,it would have low notes.

Reasoning- Long pipes have larger air space, and air space affects the pitch. The larger the air space, the lower the sound.

Mike

10/23/2013 23:09:52

Test

Mrs D

10/24/2013 06:24:25

test 1

cottone3

10/26/2013 07:50:11

CLAIM:
My tested variable would be the length of the instrument, and my control variables would be the amount of air I blow into the saxophone and my other tested variable would be the way I hold the pipe.
EVIDENCE:
I learned in the article that a control variable is a variable that stays the same and the tested variable is the variable that you test. In the video, they had saxophones that were big and had a lot of twists in them. This made the pitch lower because the sound had to travel farther.
Reasoning:
My reasoning is that I know that I have to keep all my control variables the same so can get the best answer.

smiley11

11/6/2013 00:10:56

Claim ~ I learned that more air,
makes the sound lower.
Evidence ~ In the video about
the variables of band instrument,
I notice that there was many
kinds of saxophone that makes
instruments’ sound higher or
lower by its size
Reasoning ~ It happens because
more air makes the sound lower.
The biggest saxophone take more
air which sounds lower. The smallest
saxophone takes less air which
sounds higher.

Smiley28

11/6/2013 00:11:30

C smiley #28 cer#1The longer(bigger) the pipe the lower the sound. E I would do an experiment, the controlled variable would be how much air I blow into the same instrument each time. R I know this will be a fair experiment because ”What Scientists do” says I have to control all the except one. In the it says the pipe the lower the sound

Smiley#3

11/6/2013 00:11:45

Claim: The tested variable would be how long the pipe was, and the controlled variables would be the amount of air blown into it and how I held the instrument.

Evidence: How the pipe is affects the pitch of the instrument because in the video, I saw the longer the instrument, the lower the sound, so I knew that would be a tested variable. The controlled variable would be the amount of air and the way you hold the instrument. The amount of air must be controlled because more air means the less or more sound you might have. From the article, I know that you must have a controlled and tested variable.

Reasoning: this makes sense because if you didn’t have a controlled or a tested variable, then you couldn't conduct an experiment.

smiley22

11/6/2013 00:11:55

Claim, Evidence, Reasoning
By: Smiley22

Claim: A tested variable would be the size of the instrument. The bigger the instrument the lower the sound. Two controlled variables would be the way I put my fingers down and how hard or soft I blow into my instrument.

Evidence: From the article I know I need one tested variable and keep the others controlled. From the video I know how the different sizes of instruments impacts the pitch. For example the bigger the instrument the lower the pitch. This is the variable that I am testing. From the video I also know that the amount of air blown into the instrument matters.

Reasoning: This makes sense because if you blow into it hard it will make a louder sound. But if you blow into softly you will make a softer sound.

smiley#26

11/6/2013 00:12:02

CER#1
bY:smiley26
C:The tested variable would probably be the length of the instrument pipe. The controlled variable would be how much you blow into the pipe,and the size of the instrument.
E:The length of the pipe would be the controlled variable,because the length of the pipe matters,because it has the pitch of which the instrument plays.The controlled variable would be the size,and how much you blow into the instrument,because the little instruments have a high sound,and the big instruments have a low sound.
R:I think this happens,because musicians need different instruments to play beautiful music.

smiley1

11/6/2013 00:12:11

C: I think the tested variable would be the size of the instrument.

E: in the video, I saw the bigger the instrument, the more the airspace, and when played, it’ll have a bigger sound.

R: When you play an alto sax, the sound turns out to be a little higher than the tenor sax.A bigger saxophone has more airspace,which results in a lower sound.

smiley#27

11/6/2013 00:12:18

C=claim
My claim is the air space in the instrument matters because the pipe is the matters on the sound.The right amount of air space makes the sound go higher or lower.

E=evidence
The pipe’s air space will make the air amount a controlled variable.The video shows that as a controlled variable.

R=reasoning

The pipes are long and short but the air space matters, the longer the pipe the lower the sound is. This happens because of the air space.

Smiley!4

11/6/2013 00:12:49

Smiley14 CER 1
CLAIM:The saxophone and other brass instruments’ length matters because it tells how high or low the sound is.
EVIDENCE: From reading the article, I know I need to control only one variable
Also in the video, it says that the length of the instrument does affect the sound.
This is the variable I need to test. The video also demonstrates how it affects the sound.
REASONING: So, I need to gather these facts and conduct an experiment to prove it because now I know what the variables that will help me get an idea of what the outcome might be.

Smiley #19

11/6/2013 00:13:09

Smiley #19 Nov. 5 CER #1 {Instruments}

Claim:
The tested variable would be how large the saxophone would be, the size.
The controlled variable would be how I blow into it.

Evidence:
I got this information from the video, passage, and the example CER. It says the bigger the instrument, the lower the sound. So the size is the tested variable. The controlled variable is what I do.

Reasoning:
This is because when you blow into the instrument, the air inside moves and that is how the sound is made. When the air is in a larger space, and there is more space inside, it makes a lower sound

smiley#23

11/6/2013 00:13:26

Claim-The tested variable would be the size of the pipe.The controlled variable would be the amount of air to blow into the instrument and the way to hold it.

Evidence-In the video we saw that there are many sizes of saxophones and all make different pitches. In the article we read that we need a 1 tested variable and others should be controlled.

Reasoning-Different size saxophone make different pitches because of the length of the pipe.

smiley #13

11/6/2013 00:13:35

Claim Evidence Reasoning #1 instruments Smiley #13

Claim: A variable that would change the sound of the saxaphone would be the length of the pipe.

Evidence: The bigger the saxaphone, the lower the pitch. The smaller the saxaphone, the higher the pitch.

Reasoning: Based on the evidence the two different variables of the bigger saxaphone and the smaller saxaphone makes a different pitch. The bigger saxaphone has a lower pitch, the smaller the saxaphone the higher the pitch.

smiley#15

11/6/2013 00:14:17

INSTRUMENT CER by smiley 15

C-You need one tested variable and the rest controlled if you want the right answer. 1 variable 1 difference.

E-In the video they had 4 saxophones with different size pipes but you could also have keys pressing down or how much airflow is in to change the sound in the article the plants could have multiple variables so you have to have CONTROLLED variables.

R-if you want one thing tested it won't work if you have keys pressed down and a small sax and keys up with a big sax you need keys down big sax keys down small sax.

Yeyeon/Smiley/#10

11/6/2013 00:15:09

CER {no.1} Smiley#10

Claim:The more air in the instrument the lower the sound is.

Evidence:If the instrument has more air in the instrument the longer the sound has to go,so it makes the a lower sound.However, if you blow hard the sound is higher.

Reasoning :In the video it explained why it would make a lower sound and showed how low the instrument would sound like.

smiley24

11/6/2013 00:15:17

CER #1
What would make a brass or woodwind instrument have a higher pitch?
By Smiley24
C: The variables would be the length of the pipe, the amount of air I blow into the instrument, and how I would hold the instrument.
E: The length of the pipe changes how much space air can go through the instrument.
R: We would blow in the air and the bigger air space it holds, the lower sound it makes. The amount of air blown inside changes the amount of sound that vibrates.

smiley#8

11/6/2013 00:16:16

Smiley#8

Claim: My claim is that the bigger the sax the lower the sound and the smaller the sax the higher the sound.
Evidence: My evidence is that according to the video the smaller the sax the smaller the pipes it has and that would let more of the sound come out which makes it higher and the bigger the sax the lower the sound because the pipes cover most of the instrument.
Reasoning: My reasoning is that when the pipe is smaller the less it cover of the instrument and that would let most of the sound out which makes it higher than it would be if the sax was bigger because the pipes

ms.smiley21

11/6/2013 00:16:30

cer#1

CLAIM: The controlled varriable will be the size of the sax and how long the sax will be.

EVIDENCE: The lady in the video said that the bigger the instrument the lower the sound the instrument will make.

REASONING: The bigger the space the more air flows through and the more air the lower the sound

smiley 17

11/6/2013 00:17:08

Claim: I think the tested variable would be how wide or long the instrument is and the controlled variables will be how wide or long the instrument is and the controlled variables would be how I hold it and how I blow in the instrument.Evidence: After I read the article and watched the video, I saw that we need one variable and we have to not change the others to get a controlled experiment.Reasoning:This happens because the more space you have, the more space the air has to vibrate and the more space the air has to vibrate, the lower the sound.

ms.smiley#5

11/6/2013 00:19:50

Instruments #1 Ms.Smiley #5

C-The claim i had is the variables would see how bigger instruments have a lower sound than a small instrument for example a trombone is a lot lower than a trumpet because the trombone has more air space and the more air space the lower the sound will be.
E-The evidence i had was was the bigger the instrument the more room it has for air to move around so it will vibrate so it will make a low sound.
R-The reasoning i had was when a house vibrates it will be a lower sound than a room vibrating because it holds more air

Smiley#16

11/6/2013 00:22:42

Smiley#16
Claim: To be a scientist, I need to conduct an experiment.The tested variable in the experiment would be the length of the pipe.The controlled variable would be how much air I blow.
Evidence: The article “What scientists do”told me that I need to have a tested variable and a controlled variable.The video showed me that different sizes of instruments make different sounds.
Reasoning: This all made me think that I would have to control the amount of air I blew. I noticed that in the video it showed the way you hold it makes a difference, I need to hold the instrument in the same way so that the variable that's changing the sound is the size.

Smiley#20

11/6/2013 00:22:55

Ms. Smiley # 20 Instrument
Claim : The bigger the instrument, the lower the sound. The smaller the instrument, the higher the sound.

Evidence : For example, trombones tend to have lower sounds.
Reasoning : In the video and book, it ( I Think it ) said that if an instrument was bigger, it would play lower sounds. If it was smaller, it would play higher sounds

smiley#2

11/6/2013 00:23:10

Smiley #2
C -Is that the bigger the instrument the lower the sound. And the less air space the louder the sound.

E -It says the eksakt words in the video I just watchet.

R -It happens by the air space in the instrument the more air space the lower the sound the less air space the higher the sound.

smiely#7

11/6/2013 00:23:23

Instrument C.E.R

Claim:One of the things I have learned is that the lower the saxophone the higher the pitch is.

Evidence:the larger the saxophone the lower the pitch is gonna because you will blow less air into the saxophone.

Reasoning:Changing the sound would be like blowing into it with higher or less air.

Smiley#6

11/6/2013 00:24:33

CER#1
C: A tested variable would be how many loops and bends there are
E: In the video it says that the baritone made a low-pitched sound but the smallest sax has a high-pitched sound. In the article it said that you can only have one tested variable and control all the other variables so you can focus on that one variable.
R: Baritone makes a low sound because it’s longer, with more loops and bends, but the smallest sax has the least amount of loops and bends so it has a high pitched sound.

Smiley- #25

11/6/2013 00:28:15

C.E.R- Instruments Smiley- #25

Claim: A tested variable is when you change one variable and keep all the other variables the same. A controlled variable are the variables that you keep the same.
Evidence: My evidence is that if you had changed two or more variables, then you wouldn’t know which variable affected the the experiment the most. Example, if you had two flower pots with plants in them,and then put one in the shade and not water it.Then you put the other flower pot under the sun and water it every once in a while. This would make a big difference because you wouldn’t be able to know why/how the plant grow taller than the other one. Also, you wouldn’t be able to compare the results if you change all the variables at once.
Reason: The reason we don’t know which variable had effected if you had changed two variables is because they blend in like peanut butter and jelly. You wouldn’t know which flavor is which, because both flavors blend in.

Smiley12

11/6/2013 00:28:22

Claim:Pressing valves changes the pitch
Evidence:Pressing valves changes the amount of space inside the instrument
Reasoning:Changing the amount of space causes air to vibrate differently,thus changing the pitch.

smiley18

11/6/2013 00:35:00

Claim: The independent variable would be how long the pipe is.The controlled variable is how much air you put in.Evidence: In the video it said that “More air= Lower sound”.In the arcticle it says that there is a tested variable and a controlled variable.Reasoning:When you have a long pipe and you blow the same amount of air it takes longer to get there and loses most of your air and it makes a lower sound.

smiley9

11/6/2013 00:46:46

C.E.R #1

smiley #9

The more you tighten your lips the higher the sound is,the more you
loosen your lips the higher the sound is .

I have noticed when i loosen my lips the sound goes lower.

My instrument is small so i think the pitch is going go high.

Smiley12

11/6/2013 02:57:20

Claim:Pressing valves changes the pitch of the instrument
Evidence:I know this because in the video, it said that pressing valves changes the amount of space inside the instrument.
Reasoning:I know this because in the video, when the lady pressed the valves on the recorder,the pitch changed.

francis#21

11/8/2013 04:05:52

CER #1

Francis #21

C: The different size of the pipe the higher or lower the sound.

E:From the video it said that when you cover up the holes on the sax it changes the sound,changing the sound. From the article “What do scientists do”to conduct a fair experiment you have to control all variables except one.

R:When there is a instrument that has a long pipe and an instrument that has a short pipe you are only changing one variable. So you are conducting a fair experiment.

Francis No.14 CER No.1

11/8/2013 04:06:02

CER 1
Francis 14
Claim: The tested variable for my experiment would be the height of the pipe.

Evidence:This would be the variable because from the video I learned that the bigger the pipe the more air that vibrates. which creates a lower sound. From the article I learned that only one variable can be changed in a fair experiment. Also, from the video I learned that the amount of air blown and how I hold the instrument has to be the same every time.

Reasoning: If the saxophone is larger I have to only change the length of the instrument. If I change more than one variable I won’t know what caused the outcome.

Francis #3

11/8/2013 04:07:13

C.E.R 1
Francis #3

Claim: How long the pipe is, is the controlled variable.

Evidence: In the video it said that the longer the pipe is the lower the sound. In the text it said you can only test one variable at a time.

Reasoning: The reason you can only test one variable at a time is because if you test two or more at a time you would lose track of what you’re doing.

Francis #11

11/8/2013 04:09:33

C.E.R #1

Francis 11

C: My claim is that a saxophone with a shorter pipe will make higher pitch sound.

E: From the video I know this because in the video it said that the bigger the sax the lower pitch the sound it will be. Also from the article it said there has to be a controlled variable which would be how much air you blow in.

R: This happens because the shorter the pipe the less space it has, so in that case it will make a higher sound.

Francis #22

11/8/2013 04:10:19

C.E.R #1 Francis #22

MY CLAIM: When you use scientific inquiry, you start by making an observation. Like the sax, you know that the more air=lower sound.

MY EVIDENCE: In the article, scientific inquiry starts by making an observation or a hypothesis. In the video, when a musician blows into a pipe the air inside moves or vibrates.

This happens when you change many variables at once. When you see all the loops and bends the sound has to travel all the way in till the sound comes comes out.

Francis 27 link

11/8/2013 04:12:18

Claim:
The person blowing the instrument should be a controlled experiment.

Evidence:
One person might blow harder than another person and their teeth may not be in the same places or shape. Also the video the video says that instruments make sounds using vibration and if the vibration is different the sound would be different.

Reasoning:
If someone blows harder than the other the air moves faster and the instrument will make a lower or higher sound.

Francis #7

11/8/2013 04:12:48

C.E.R #1
Francis #7

Claim-
The shorter the saxophone the higher the pitch.

Evidence-
In the video it said the shorter the pipe the higher the pitch you are going to get.
In the article I would only test one variable. So I would know what cause this change in the experiment to happen. So I would have to hold the saxophone the same way and play the same note to find out how the pitch changed.

Reasoning-
In the video you have it said you have more space to blow in if you have a bigger saxophone with more space.So it would make a lower sound. If you had less space it would make a higher pitch sound. In the article you can only test one variable because if the outcome is different and you tested two variables you would not know what variable changed the outcome.

Francis #25

11/8/2013 04:13:13

CER NO.1

Francis #25

CLAIM:If you wanted to know if a bigger saxophone pipe produced a lower or higher sound, you would have to do an experiment where the independent variable is hoo big the sax is. The controlled variables are how hard you blow and if you put any fingers on the notes.

EVIDENCE:In the article it said you think of a question and then experiment it. In the video it said that the bigger the pipe, the deeper the sound. The smaller the pipe, the higher the sound.

REASONING:The video states that the bigger the air pipe the lower the sound because the air has more room to vibrate. The article was right about having to experiment , otherwise we would not have the answer correct and we would all have different answers.

Francis #20

11/8/2013 04:13:39

C.E.R #1 Francis #20
Claim:

If it has a small/skinny width, it’s higher. If it’s a bigger/larger width, it’s lower.

Evidence:

Using data from the article, I used only one variable, it appears that my thinking is correct .I also used evidence from the video. for example, I used the more air=lower pitch evidence too.

Reasoning:

With the bigger saxophone, I need to force more air to even make a sound, so you can only make low sounds.However, with the smaller ones it takes less force. This also can be used with woodwinds by covering the holes.

Francis #10 CER

11/8/2013 04:15:24

CER #1 Francis #10

Claim:

The clarinets will change notes when you push the valve.

Evidence

From the article, it says to test one variable, and if you were to blow into a clarinet, and push a valve, the video said it would block out some air out to produce a tone.

Reasoning
The video said that when a valve closes, the tone changes because air is trapped inside. The article also said that you have to come up with a hypothesis, so this is my hypothesis.

francis12

11/8/2013 04:16:00

CER FRANCIS #12

C-I claim that the bigger the sax the lower the sound the smaller the sax the higher the sound

E-From the video “the more air in the instrument the lower the sound is’’. From the article “ scientists use only one variable for their experiment’’.

R-The more space in the instrument the longer it takes to get air out so it will make a lower sound but the smaller the instrument the faster it will travel so it will make a higher sound.

Francis 18 link

11/8/2013 04:16:33

C: My tested variable would be the size of the instrument because the bigger the instrument, the lower the sound.
E: From the article, it was stated that only one variable should be changed for a successful experiment. Also from the article, I read that a tested variable is the variable you change. In the video, the woman only changed one variable, which was the size. Also, she said that more air would result in a lower sound.
R: The sound is lower for bigger instruments because the bigger the instrument, the more air it has, so the sound has more space to travel.

Francis#1

11/15/2013 00:19:24

Francis #1

Claim: The higher the sound the smaller the instrument.

Evidence: From the video, the more air there is the lower the sound. With a smaller instrument the sound will make higher pitches. In the article it said that when you test a variable, you need an experiment. In the experiment you test the variable which is the smaller the instrument the higher the sound.

Reasoning: This happens because if you take a balloon and you blow it up a lot and then you take another one and you blow it a little. Then when you let go of both of the balloons, the one that is bigger will make a lower sound. It is like the bigger the instrament the lower the sound.

Francis #23

11/15/2013 00:19:31

11/6/13 CER NO.1
Francis #23

Claim: The tested variable would be the size of the instrument,also in the article the plant size because the food amount makes it grow.

Evidence: I say this because in the video, “musical instruments”, it said the bigger that the saxaphone, the lower the sound.And the smaller the saxaphone the higher the sound.

Reasoning: This makes sense because relating to real life an adult Elephant has a deeper sound and a baby Elephant has a high-pitched sound.

francis #2

11/15/2013 00:19:43

CER #1
Francis #2

CER NO.1

Francis #25

CLAIM:If you wanted to know if a bigger saxophone pipe produced a lower or higher sound, you would have to do an experiment where the independent variable is hoo big the sax is. The controlled variables are how hard you blow and if you put any fingers on the notes.

EVIDENCE:In the article it said you think of a question and then experiment it. In the video it said that the bigger the pipe, the deeper the sound. The smaller the pipe, the higher the sound.

REASONING:The video states that the bigger the air pipe the lower the sound because the air has more room to vibrate. The article was right about having to experiment , otherwise we would not have the answer correct and we would all have different answers.

francis#8

11/15/2013 00:20:00

C.E.R #1
Francis #8

Claim:
The bigger the sax the lower the sound.
The smaller the sax the higher the sound.

Evidence:
From the video it said that since the bigger
sax has more space,that makes a louder
sound.The smaller sax has less space,that
makes a higher sound.

Reasoning:
This happens because when you blow
it makes a sound depending on the sax.

Francis #15

11/15/2013 00:21:18

Claim Evidence Reasoning #1

Claim : The amount of air in the saxophone affects the pitch it makes.
Evidence : According to the video, the longer the pipe the lower the sound, and the shorter the pipe the higher the sound. The book mentions that you can only change 1 variable (Tested Variable) and the variables that could have been changed are called the controlled variables.
Reasoning : This happens because the more air in the instrument (longer pipe) the lower the pitch. the instrument with less air (smaller pitch) the higher the pitch.

Francis#5

11/15/2013 00:21:26

CER!#1
Francis #5

C:The variable I would change is the size of the instrument. One of the controlled variables I would change is how I blow into the instrument. Another controlled variable I would change is how many holes I cover.
E:From the video it says the smaller the instrument the higher the sound and the larger the instrument the lower the sound.
R:The larger the instrument the larger the air space and the lower the sound. the smaller the air space the higher the sound.

Francis #6

11/15/2013 00:21:56

C.E.R 1 Francis #6

Claim: long pipes make low noise’s and short pipes make high noise’s.

Evidence: more air = lower sounds the less air in the pipe the higher the sound.

Scientist are people who wonder why?

Reasoning: air travels through the pipe so more air for a lower pitch the holes make it so more or less air get out which makes different sounds come out of the instrument.

Francis #24

11/15/2013 00:22:14

CER1

Francis #24

Claim-

The larger the air space, the lower the sound.

Evidence-

The lady in the video said that the more air, the lower the sound. Also, in “What Scientist Do” said that only 1 variable can change. So when I test it out, the only thing that will change will be the pipe size.

Reasoning-
When musicians blow into a pipe the pipe make a sound when the air inside the pipe vibrates or moves.

Francis #13

11/15/2013 00:27:48

#13 cer

claim: the longer the tube is the lower the sound.

evidence: from the article the less air =higher sound, more air = lower sound from the video you can only change 1 variable.

reasoning: if there is a longer pipe the sound would go slower.

testing

11/15/2013 01:22:49

testing

a #11

11/18/2013 04:59:21

Hurricanes and blizzards can be very scary,dangerous type of weather.they are both super storms that starts off gentle and grow in strength.

A Hurricane is in warm weathers.It is the deadliest of storms .the wind speed of 74-200 mph can destroy property and kill people.

In a blizzard the snow falls 2 inches per hour. The temperature is below 20 degrees fahrenheit. The blowing snow makes it hard to see in a blizzard.

the author is trying to teach us that we need to be safe when a super storm comes to our area. First,watch the news,listen to the radio,and sirens. Second, seek shelter .leave the area, and go to a higher ground.Lastly , be safe when any storms comes to your area.

Variables

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