Earth Materials

9/9/2013

Read the article below from the Foss Science Stories "Earth Materials" book. Then, watch the video about the different types of rocks.

One type of rock is called "metamorphic" rock. Let's break up the word metamorphic-

meta means "big"
morph means "change"
Therefore, the word "metamorphic" means big change. A metamorphic rock has gone through a big change.

Your task:
Use what you learned in both the article and the video to explain how metamorphic rock is made. Be sure to support your response with evidence from BOTH the article and the video!

"Where Do Rocks Come From?"

Types of Rocks Video

CCSS.ELA-Literacy.RI.4.1
CCSS.ELA-Literacy.RI.4.4
CCSS.ELA-Literacy.RI.4.7
CCSS.ELA-Literacy.RI.4.9
CCSS.ELA-Literacy.W.4.2
CCSS.ELA-Literacy.W.4.4

93 Comments

Tripp link

11/5/2013 02:39:18 am

HOW METAMORPHIC ROCKS ARE MADE. This is how metamorphic rocks are made. usually, very deep under ground there is magma, and if the magma does not get hot enough the rocks will get cooked...And the rocks will get smashed by heat and pressure together witch will make a metamorphic rock.For example Limestone is turned into Marble. Granite turns into Gneiss. Rocks cannot be melted, but pressure can change the rock.For instance if a rock into pressure the two rocks will smash, like really hard.

alexa michalec

11/19/2013 02:33:57 am

i like how you gave a alot of detail and i like how you wrote your answer

sawyer

11/5/2013 02:42:51 am

how metamorfic rocks are made. they are made from volcanos and earthquakes. they are formed by heat and pressure.

jose

11/5/2013 02:47:11 am

Metamorphic rocks are made from heat and pressure deep down in the earth. Acording to the video types of rocks and the text where do rocks come from. Metamorphic rocks start as Ignios, Sedementry rocks and other types of metamorphic rocks. Acording to the video limestone can turn into marble and granite can turn into gneiss.

jose

11/19/2013 02:31:52 am

Metamorphic rocks if their are not enough heat and pressure the metamorphic rocks will not melt but will mix with other rockcs.

Andrew Wang link

11/5/2013 02:48:21 am

Metamorphic rocks are made by getting put through heat and pressure coming from sources such as volcanoes and earthquakes. According to the video, the word "metamorphic" means "changed" or "big change." At first, metamorphic rocks are not actually metamorphic rocks yet because they didn't go through a change. They are just rocks made up of other different masses of rocks like sedimentary, igneous, and little parts of other metamorphic rocks. Then, since most rocks start out in volcanoes and then eventually get pushed out by all the pressure, most metamorphic rocks will get cooked and flattened out by the lava underneath them. If the lava is too hot, then it will melt the rocks into molten rock. To form the metamorphic rocks, the lava can't be too hot to melt the rock but hot enough so the heat and pressure will change the rock's shape. As the rock is getting put through all that heat and pressure, all the crystals and minerals in the rock will also get flattened out from the pressure and they will eventually form into more like layers on the rock. For example, according to the video, when granite gets put through heat and pressure, it will form a new rock called gneiss. When limestone gets put under heat and pressure, it will form a new mineral called marble. After rocks are put through a big change, they will form a metamorphic rock.

Smriti Suresh link

11/5/2013 02:54:28 am

I like the way you gave evidence to your claim. You used a lot of detail. And your paragraph is LONG!!!!!!! :)

alexa michalec

11/19/2013 02:31:37 am

smriti is right

Smriti Suresh link

11/5/2013 02:49:06 am

According to the text "Where Do Rocks Come From ", metamorphic rocks are made of heat and pressure. "Meta" means big and "morph" means change .They start out as masses of rocks. Metamorphic rocks may start as igneous rocks, sedimentary rocks, and even metamorphic rocks. According to the video "Types of Rocks", the heat and pressure cannot melt the rock, but it can change it. Also, deep underground heat and pressure can cause changes too and change it into a metamorphic rock.For example, it changes Granite into Geiss,Limestone into Marble,and Shale into Slate.

Miya Watson link

11/5/2013 02:49:42 am

Metamorphic rocks start as masses of igneous,sedimentary,or other metamorphic rocks! Metamorphic rocks are created by heat and pressure,they are formed deep underground.Magma can heat and melt the rocks under the Earth's surface,sometimes magma is not hot enough,so the pressure press's the layers together to make a new type of rock!Granite,for example,smashes together into gneiss the pressure's so strong,it can have stripes,instead of dots.

Ethan Block

11/5/2013 02:52:28 am

How Is A Metamorphic Rock Made
The vidio and the article said that metamorphic rock can start out as
a sedimentay rock,igneos rock,or even another metamorphic rock.Both sources said that metamorphic rocks are made from heat and pressure.Valcanoes and earthquakes cause heat and pressure which will change rocks.

Naisha link

11/5/2013 03:03:28 am

granite to gneiss and limestone to marble. Also rock cannot be melted,but the pressure changes the rock.

Alana

11/5/2013 03:06:46 am

Metemorpic rocks are made from heat and pressure. The heat and pressure come from volcanoes.And volcanoes are very hot. Metamorphic rocks were first igneous, sedimentary and metamorphic rocks. Volcanoes and earthquakes cause heat and pressure which change rocks into metamorphic rocks. Heat and pressure can change sandstone into quartzite. Pressure cause Granite to change into Gneiss. Limestone changes to Marble.

pavithra

11/5/2013 03:08:06 am

how are metamorpfic rocks made? in the text it said that metamorpfic rocks are made by volcanoes/earthquaks.Sedimentary and igneous are some types of rock groups and also in the text it said that igneous is made from lava.Some rocks can change into other rocks like granite into gneiss and limestone into marble.deep underground heat and pressure can cause changes.sometimes you can see the crystals that formed when metamorphic rocks cooled.Rocks can't be melted but the pressure changes the rock.

Anishka

11/5/2013 03:10:14 am

Evidence from the Text : Metamorphic rocks are made from heat and pressure.The text says:metamorphic rocks start out as Igneous, Sedimentary, or other Metamorphic rocks.Volcanoes/ Earthquakes, heat and pressure which change rocks into metamorphic rocks.
Evidence from the video:Deep underground, heat and pressure can cause changes:Granite into Gneiss,and Limestone into Marble.Rocks cannot be melted, but pressure can change it. Underground,rocks start out as Igneous, Sedimentary or another Metamorphic rock.

alex michalec

11/19/2013 02:30:23 am

i like how you wrote your text and you gave a alot of detail

5283

11/13/2013 10:48:18 pm

I claim that heat and pressure together makes metamorphic rocks.
I know that because sandstone can turn into quartzite which is a metamorphic rock. Another example would be limestone a sedimentary rock to marble also a type of metamorphic rock.The reason i know about this is because metamorphic rocks change due to heat and pressure. Metamorphic rocks could be made of igneous rocks sedimentary rocks or even other type of metamorphic rocks.Because metamorphic rocks start out as masses of other rocks.Volcanoes and earthquakes can also be a cause for metamorphic rocks to change.Because metamorphic rocks means big change.That is my understanding for how metamorphic rocks are made.

1230

11/14/2013 11:36:43 pm

My claim is heat and pressure make metamorphic rocks. I know that because under extreme heat and pressure quartz can turn into sandstone.I also know for a fact that igneous and sedimentary can turn into a metamorphic rock, if there’s enough heat pressure.The reason why metamorphic rocks can change of heat and pressure is because the rocks are below the Earth’s surface.

5430

11/14/2013 11:36:43 pm

I claim that heat and pressure make metamorphic rocks. I know this because under heat and pressure,sandstone which is a sedimentary rock can turn into quartzite. It gets lots of heat and pressure because it is under a lot of other rocks, like Igneous and Sedimentary. Metamorphic rocks started out as different rocks. But all that heat and pressure made it change. Meta means big,and morph means change. So the entire name means big change, so it changes due to heat and pressure.

5280b

11/14/2013 11:38:52 pm

I claim that heat & pressure makes metamorphic rock. I know this because heat and pressure can turn sandstone in to quartite . I also know this is true because igneous rocks and sedimentary with enough heat and pressure can turn into metamorphic. Volcanoes and earthquakes can cause the change.

5401

11/14/2013 11:39:30 pm

I claim that the heat and pressure makes a metamorphic rock. My evidence to support my claim is that sandstone turns into quartzite. Other evidence to support my claim is that limestone turns into marble. A final piece of evidence is that shale into stale. The reason why metamorphic rocks change due to the extreme heat and pressure is that because the metamorphic rocks are below the Earth’s surface. An reason why metamorphic rock is made due to extreme heat and pressure is that it has flat mineral grains due to that the rock will get cooked and smooshed when it is sandwiched under the other layers of rock.

1239

11/14/2013 11:40:08 pm

I claim that heat and pressure makes metamorphic rocks. I know this because under heat and pressure, sandstone can become quartzite and limestone can become marble. Shale can also become slate. The reason why the metamorphic rocks can change due to heat and pressure is because they are below the other Earth rocks. The other Earth rocks create heat and pressure because they are very heavy and hot and that is why I think metamorphic rocks are formed. Metamorphic rocks are made by heat and pressure and other sedimentary, igneous and even metamorphic rocks.

0196

11/14/2013 11:41:30 pm

I claim that metamorphic rocks are made from lots of heat and pressure. I know this because under the heat and pressure, sandstone can turn into quartzite, limestone can turn into marble. Shale can also turn into slate. The reason why how other rocks can change into metamorphic rocks is due to the heat and pressure of the rocks that are above the rocks that is going to change into metamorphic rocks.

5242

11/14/2013 11:44:52 pm

Bemis Thinkers Critical Thinking Blog

My claim is that the heat and pressure underground can make metamorphic rocks.I know this because sandstone can turn into quartzite. Also limestone can turn into marble.Quartzite and Marble are metamorphic rocks.Sandstone turns into quartzite because of the heat and pressure underground.

5088

11/14/2013 11:45:13 pm

I claim that heat and pressure make metamorphic rock. I know this because under heat and pressure can turn sandstone into quartzite. Also if a metamorphic rock has not enough heat and pressure it will become a new type of rock. A metamorphic rock has miner grains that are flat and aligned.

1224

11/14/2013 11:45:21 pm

I claim that it is heat and pressure that makes a metamorphic rock. Metamorphic rocks start as any of the three groups: igneous, sedimentary, and, yes, metamorphic. Heat and pressure changes when under the earth, rocks are heated up, not enough to melt them, but just enough to cook and mush them to a different rock. For example, limestone,a sedimentary rock, could turn into marble.Two types of the sources of heat and pressure are volcanoes or earthquakes.

1264

11/14/2013 11:45:47 pm

I claim that heat and pressure can turn into metamorphic rocks. I have evidence that sedimentary and igneous rocks can turn into metamorphic rocks.The reason is because the rocks below the Earth’s surface are in a lot of pressure from the rock layers above.

5221

11/14/2013 11:46:33 pm

I claim that heat and pressure make metamorphic rocks.I know that because under heat and pressure sandstone can turn into quartzite.The reason why the metamorphic rocks change due to heat and pressure is because they are below the earths surface.I claim that metamorphic rocks have mineral grains because it gets squished and squashed under the earths surface.I claim that Igneous rocks and sedimentary rocks can turn into metamorphic rocks if there is enough heat and pressure.the reason why is that the heat and pressure form the metamorphic rock from igneous or sedimentary rock.The heat and pressure come from different sources such as volcanoes or earthquakes,and those sources make sedimentary,igneous and metamorphic rocks. That is how metamorphic rock is formed.

5080

11/14/2013 11:46:59 pm

I claim that a metamorphic rock is made from heat and pressure. I know this because heat and pressure can turn limestone and sandstone into marble and quartzite. Heat and pressure can also turn shale into slate.The reason is because the metamorphic rocks are a lot of other layers of Earth’s rocks. Heat and pressure can come from different sources such as volcanos and earthquakes. If there is enough heat & pressure, the rocks below might turn back into molt and magma. But if it doesn’t get quite hot enough, the rocks will get cooked and smushed into a new type of rock

5236

11/14/2013 11:47:11 pm

I claimed that igneous and sedimentary can turn into metamorphic.I know that because heat and pressure some rocks turn into magma by if it is hot if they are not hot they turn into metamorphic.The reason is the metamorphic have mineral grain like sedimentary and igneous.

5546

11/14/2013 11:48:06 pm

I claim that heat and pressure make metamorphic rocks.I know that because under the heat and pressure, igneous rocks, sedimentary rocks and even other metamorphic rocks can change into new metamorphic rocks. Also, heat and pressure can turn sandstone into limestone.The reason why the metamorphic rocks change due to heat and pressure is because the rocks below the Earths surface are under a lot of heat and pressure from the rock layers above.

1283

11/14/2013 11:48:49 pm

I claim that heat and pressure make metamorphic rocks. I know this because under heat and pressure sandstone can become quartzite. The reason why the metamorphic rocks change due to heat and pressure is because they are below the other earths rocks.If igneous rock gets heat and pressure it changes into a metamorphic rock.Metamorphic rocks have mineral grains.

1355

11/14/2013 11:49:15 pm

I claim that heat and pressure makes metamorphic rocks.I know this because under and pressure it makes sandstone to quartzite.The reason why is because metamorphic rock changes to due heat and pressure is because they are below all the other types of earth's rocks that can privoid a lot of heat.Also another evidence is heat and pressure can turn sandstone in to quartzite because sandstone is a sedimentary rock and quartzite is a metamorphic rock and sandstone can turn in to a metamorphic rock.

1228

11/14/2013 11:50:02 pm

I think that metamorphic rocks are formed by extreme heat and pressure. I know this because heat and pressure can turn sandstone in to quartzite and shale in to slate, slate and quartzite are metamorphic rocks while sandstone and shale are sedimentary rocks. Sedimentary rocks are not the only type of rock that can turn into a metamorphic rock, igneous rocks can also become metamorphic rocks.You’re probably wondering what causes the heat and pressure needed to form metamorphic rocks, well I’ll tell you. Earthquakes are a big part of turning rocks into metamorphic rocks. When the Earth starts shaking the ground shifts, and so do the rocks underground. This might shift the rocks to a place with LOTS of heat and pressure making it a metamorphic rock.

0933

11/15/2013 12:45:13 am

I claim that heat and pressure makes metamorphic rocks. Heat and pressure can turn sandstone into Quartzite. It can also turn limestone into marble. Metamorphic rocks take lots and lots of heat and pressure to form.

5144

11/17/2013 11:14:15 pm

I claim that metamorphic rocks are made from heat and pressure.
For instance ,in the article it said that metamorphic rocks are made from heat and pressure by pressuring the other types of rock.
The reason for this is because the other rocks are combined to make a metamorphic rock.

5414

11/17/2013 11:14:22 pm

Metamorphic rocks are made by igneous rocks when igneous rocks are able to be turned into metamorphic rocks.When igneous rocks have enough heat and preasure.I know this because in the video it said that igneous rocks are turned into metamorphic rocks when it has enough heat and preasure.

5512

11/17/2013 11:14:29 pm

Metamorphic rocks are made by pieces broken of off of another rock, for instance Metamorphic rocks are pieces of bigger rocks.

My evidence for this claim is from the article. From the reading I know that Metamorphic means a big change which means Metamorphic rocks can be changed into Sedimentary, Igneous and even Metamorphic rocks, for example limestone can be changed into marble.

Some Metamorphic rocks can be changed by heat and the pressure underground.

1270

11/17/2013 11:15:02 pm

Metamorphic rocks are formed when heat and pressure apply to igneous and sedimentary rocks.
According to the text, and the video, rocks below the earth's surface receive heat and pressure, and that turns them back into magma, but if the heat isn't hot enough, the rocks will be turned into a different type of rock, metamorphic.

5547

11/17/2013 11:15:58 pm

A metamorphic rock can be made from an igneous rock if enough heat and pressure are applied.

For example,metamorphic rocks start out as parts of bigger rocks.These rocks can be igneous,sedimentary or even other metamorphic rocks! Heat and pressure,which makes metamorphic rocks,can come from many different sources. For example,two of the many,many ways are from an earthquake or a volcano,so heat and pressure are the main ways to make a metamorphic rock! :D

5219

11/17/2013 11:17:44 pm

Metamorphic rocks are made of heat and pressure,according to the article ''Where Do Rocks Come From?'' heat and pressure can turn sandstone into quartzite ,also limestone into marble.

1225

11/17/2013 11:20:18 pm

Heat and pressure can change different types of rocks into metamorphic rocks.For instance heat and pressure can change limestone into marble and it can change sandstone into quartzite.Quartzite and marble are both metamorphic rocks.The reason is the heat cooks the rock and the pressure moves the rocks into others.

1273

11/17/2013 11:21:53 pm

Metamorphic rocks are formed by heat and pressure.According to the text,metamorphic starts as parts of igneous,sedimentary,or even other metamorphic rocks.Heat and pressure come from different things like volcanoes and earthquakes.If it isn't hot enough for the rocks to melt, the rocks are cooked and smashed.When rocks get deep enough, they change into metamorphic.

5423

11/17/2013 11:24:20 pm

Metamorphic rocks are made up of heat and pressure. Rocks can change because of heat and pressure.Heat and pressure come in different ways they can turn limestone into marble. A lot of heat and pressure will turn the rocks will turn the rocks back into molten magma .Metamorphic rocks start out as other rocks the rocks can be igneus sedimentary or even other metamorphic rocks.

1363

11/17/2013 11:24:27 pm

How are Metamorphic rocks made rocks made?

Based on the text metamophic rocks are made from heat and pressure.Metamorphic rocks can also change into any other rock.metamorphic rocks are bits of other rocks.

For example rocks like sandstone can turn into qurtizite by heat and pressure

1252

11/17/2013 11:25:09 pm

Metamorphic rocks are made from heat and pressure.
According to the text, metamorphic rocks are made from heat and pressure below the earth's surface. From the video, I know that when rocks are below the earth's surface, they are in a lot of heat and pressure. The heat and pressure came from the volcanoes and earthquakes. After that, the rocks in the earth's surface will get "cooked" and "smashed". Then, the rocks will turn into new rocks. For example, limestone can be turned into marble if it has a lot of heat and pressure.
The reason when rocks have heat and pressure turn into metamorphic rocks is because the heat melts the rock in the earth. Next, the pressure "smashes" the rock so it is just like a metamorphic rock. At last the rock hardens or cools and then, it is a metamorphic rock!

1238

11/17/2013 11:26:07 pm

metamorphic rocks are formed by heat and presser.

according to the text it said that heat and presser can come from different sources. The sources might be a volcano or an earthquake.

I know that metamorphic rocks are made by presser because on page 36 it said that metamorphic rocks are made by presser like a volcano or a earthquake.

1260

11/17/2013 11:26:52 pm

Metamorphic rocks are made by heat and pressure.According to the text metamorphic rocks start as bib pieces of other rocks.Pressure and heat can be from different sources.Some of the sources can be valcanos and earthquakes.
there are two ways that could happen to rocks on lava.One thing that could happen is the rocks above lava will turn into lava because the heat and pressure.the other thing that could happen is the rock doesn't get enough heat and pressure it get cooked and smooshed .Metamorphic rocks have flaten minerals.

1248

11/17/2013 11:28:58 pm

Metamorphic rocks are made by bigger rocks that come from a volcano
or earthquakes.I know that because the heat melts the big rock and makes it a smaller metamorphic rock.

1262

11/17/2013 11:29:34 pm

Metamophic rocks can be fomed by heat and presser .
Metamophic rocks start out as large parts of other rocks.Heat and presser can change rocks in to other types of rocks,such as,sandstone can turn in to quarts.
Enough heat and presser can turn Metamorphic rocks into magma,but if it dosnt get enough will be cooked and smushed.

1000

11/17/2013 11:30:29 pm

Metamorphic rocks are made of heat and preasure. According to the text I know this is true because a rock turns into a metamorphic rock all because of heat and preasure. For example heat and preasure can turn sandstone into quartzite. They can also turn limestone into marble. According to the video I also know that an Igneous rock can transfer into a Metamorphic rock once enough of heat and preasure are applyed. Therefore Metamorphic rocks are made of heat and preasure.

5424

11/17/2013 11:33:28 pm

Metamorphic rock is made by magma. Metamorphic rocks can change because of heat and pressure can come from different sources. For example, the source might be a volcano or an rocks into another kind of rock. The rocks below the earth`s surface are under a lot of pressure from the rock layers above. Based on what I read enough heat and pressure will turn those rocks back into molten magma. But if it does`t get quite hot enough for the rocks to melt, the rocks will be cooked and smoosed into a new type of rocks.

5376

11/17/2013 11:34:33 pm

Metamorphic rocks are made by heat and pressure
Metamorphic rocks start out as large pieces of other rocks. They can be sedimentary, igneous, and sometimes other metamorphic rocks. For example, sandstone can turn into quartzite, limestone sometimes turns into marble, and shale into slate. The rocks below the surface are under alot of heat and pressure,enough heat and pressure will turn the rock back into molten magma, but if it is not very hot the rock will get smushed and turn into a new type of rock. Metamorphic rockas have mineral grains that are lined up.

5135

11/17/2013 11:36:53 pm

According to the text and video metamorphic rocks start out as big chunks of other rocks.These rocks can change because of heat and pressure. Enough heat and pressure will change metamorphic back into molten magma. If it does not get quite hot enough for the rocks to melt the rocks will be cooked and crushed into a new type of rock.

1349

11/17/2013 11:38:57 pm

clam;metamorphic rocks are made with pressure
evidence;the heat and pressure can change other rocks for example sandstone into quaizte and limestone into marble.enough heat and pressure will trun those rock back into magma but if it doesen't get quite hot enough for the rock to melt the rock will be cooked and smooshed into a new type of rock.

1291

11/17/2013 11:46:29 pm

Metamorphic rocks are formed from heat and pressure.Metamorphic rocks start out as masses of other rocks.It is formed from igneous,sedimentary,or even other metamorphic rock.The source might even be a volcano eruption or an earthquake.These rocks can change because of heat and pressure.Look closely at metamorphic rock.Sometimes you can see the crystals that formed when metamorphic rock cooled.

1335

11/17/2013 11:47:21 pm

Metamorphic rocks are made up by heat and pressure.For instance in the video it says when rocks are below earth's surface they are under a lot of pressure .And if there's not enough heat and pressure the rocks will not turn back into magma.Or if it doesn't get hot enough the rocks won't melt and get cooked and smooched into a new type of rock. And in the text it says that the metamorphic rocks start out has big chunks of other rocks.And con be turned into igneous,sedimentary, or any other metamorphic rocks.As you can see metamorphic rocks are made by pressure and heat.

5073

11/18/2013 04:04:16 am

CER
I claim that heat and pressure makes a metamorphic rock . Another claim is that heat and pressure can change an Igneous rock, Sedimentary rock, and a Metamorphic rock. I know this because it said that a sandstone rock can change into a quartzite. The reason why a sandstone can change into a Quartzite is because of heat and pressure.

5535

11/18/2013 04:09:54 am

I claim that heat and pressure make metamorphic rocks.I know that because sandstone can transform into quartzite with enough heat and pressure. Another piece of evidence is that metamorphic rocks start out as other rocks.My reasoning is that I know this because I watched a video about rocks and read an article about rocks.

5403

11/18/2013 04:23:00 am

I claimed that metamorphic rocks are form when igneous and sedimentary rocks are heated and on top of a lot of pressure.

I know this because,I know that metamorphic means big change.Metamorphic rocks also have mineral grains that are flattened.Some examples of metamorphic changes in rocks are,limestone in to marble, shale in to slate,or sandstone in to quartzite.

I choose my answer because,to me this is how metamorphic rocks are made.

sanskaar

11/19/2013 02:24:42 am

Acorrding to the text metamorphic rocks are made from heat and pressre

alex michalec

11/19/2013 02:27:53 am

somewhere underground heat and pressure changes the rock. volcanoes and earthquakes cause the heat and pressure. metamorphic rocks start out as masses of other rocks like igneous and sedimentary

Pranav

11/19/2013 02:28:46 am

Metemorphic rocks start out as massis as other rocks.They can be ignious, sedementery,or even other metemorphic rocks.Heat and lava change the rocks to oher metemorphic rocks so it changes the rock changes to diffrent rocks You can some times see crystals metemorphic rocks .

Aditi

11/19/2013 02:31:05 am

In the article I learned that metamorphic rocks are made from heat and pressure. In the article I also learned that metamorphic rocks can start out as igneous, sedimentary, or even other metamorphic rocks. Another thing I learned in the article is that volcanoes and earthquakes cause heat and pressure which change metamorphic rocks. In the video I learned that metamorphic rocks are changed by heat and pressure. In the video, I also learned that metamorphic rocks may start out as igneous, sedimentary, or even other metamorphic rocks. That is why Granite changes to Gneiss and limestone changes to marble. I also learned that rocks can't be melted but heat and pressure changes the rock to other shapes. Overall, in both of them I got the same information that metamorphic rocks are made from heat and pressure and that metamorphic rocks may start out as igneous, sedimentary, or even other metamorphic rocks.

1275

11/19/2013 02:31:21 am

I claim that metamorphic rocks are made from heat and pressure! My evidence is that if theres enough heat and pressure sandstone will change into quratz!

esha

11/19/2013 02:35:15 am

both of the two soroes says that volcanoes,earthqaukes cause heat ,pressure which chages rocks.so i think that metaphoric rocks were made from lava because in the vidoe it says that i told you at the bening so thats why i think that metaphoric rocks are made out of lava.

1256

11/19/2013 02:35:38 am

How Are Metamorphic Rock Made?
According to the text, metamorphic rocks can be made by earthquakes and volcanoes. They can also be made by heat and pressure. It also says that metamorphic rocks start out as masses of other rocks such as igneous, sedimentary, and many other metamorphic rocks.
According to the video, deep underground heat and pressure cause changes. Such as Granite to Gniess, and Limestone to Marble.It also says that rock can't be melted but the pressure changes the rock.

Ashley

11/19/2013 02:37:16 am

Metamorphic rocks is started out to be made as masses of igneous, sedemetary and metamorphic rock.Deep underground heat and pressure changnes such as Granite can tern into Gnessis and limestone to Marbel. Rocks cannot be melted but the pressure change the rock.

Katie

11/19/2013 02:40:08 am

Metamorphic rocks are formed by volcanoes and heat and pressure.Before they become metamorphic rocks they can be Sedimentary,Igneous,or even metamorphic.

keerti

11/19/2013 02:44:40 am

According to the text it said that meterprofic rocks start other masses of other rocks.For example they can be igneous,sedemantary,or even meterprofic the heat and pressure can change the rock.Sometimes you can see the crystals of meterprofic rock cool.Even a limestone can turn into marble.

puja

11/19/2013 02:45:00 am

According to the text "where do rocks come from":Metamorphic rocks start out as masses of other rocks. Metamorphic rocks are made from heat and pressure. Metamorphic rocks start out as masses of igneous, sedimentary and Metamorphic rocks. Volcanoes/earthquakes cause heat and pressure which change rocks to metamorphic rocks.

According from the video "types of rocks":Deep underground heat and pressure cause changes. Granite to Gneiss, Limestone to Marble. Rock cannot be melted but the pressure changes the rock. Metamorphic rocks start out as igneous,sedimentary and other metamorphic rocks

Sanya

11/19/2013 02:47:23 am

Evidence from the text:Where do rocks come from?"Metamorphic rocks start out as masses of igneous,sedimentary,and other metamorphic rocks.Volcanoes/earthquakes causes heat/pressure which changes rocks.
Evidence from the video:Deep underground heat and pressure causes changes.Granite is Gniess.Rocks can not be melted,but the pressure changes rocks.Underground rocks start out as igneous,sedimentary,and other metamorphic rocks.

Naisha

11/19/2013 02:47:37 am

From the text,"Where Do Rocks Come From" I learned that volcanoes/earthquakes cause heat/pressure which change rocks to metamorphic rocks.Also the text says metamorphic rocks start out as masses of igneous,sedimentary and metamorphic rocks.From the video, Types Or Rocks I learned that granite changes into gneiss
and limestone changes into marble.Also rock cannot be melted but the pressure changes the rock.

1251

11/19/2013 03:52:13 am

Metamorphic rocks are made by heat and pressure.One reason I think this is because the article said that heat and pressure can turn one rock to another rock.
Another reason I think this is because "meta" means mineral grain that flatten and align, and heat and pressure (from the video) can flatten and align rocks.

5423

11/19/2013 03:53:28 am

I claim that metamorphic rocks are made by extreme heat and pressure.I think this because sandstone can turn into quartzite with extreme heat and pressure. This happens because under the ground there is other rocks above other rocks which creates pressure. There is also magma which creates heat. Sedimentary rocks igneous rocks and even other metamorphic rocks can also be made into a metamorphic rock. This is because the heat and pressure can change these different types into a metamorphic rocks. This happens because if the magma isn't hot enough to melt the rocks above it the’ll be cooked and smooshed into a new rock. This is how a metamorphic rock is made.

5244

11/19/2013 03:54:08 am

Metamorphic rocks come from heat and pressure. Heat and pressure can change one rock to a metamorphic rock, such as changing sandstone to quartzite. Heat and pressure come from different sources like volcanoes and earthquakes. When rocks below the ground don't get hot enough, pressure from the layers above the rocks crush them to become metamorphic rocks. Igneous, sedimentary, and even metamorphic rocks can turn into metamorphic rocks. My evidence makes sense to my claim because my evidence tells how metamorphic rocks are made and that was my claim.

5520

11/19/2013 03:54:16 am

Metamorphic rocks are any types of rocks put under heat and pressure to form a metamorphic rock.On the bemisthinkers 4th grade blog it said mete means big an morph means change,so metamorphic means change.for example shale can turn into slate and limestone can turn into marble

5284

11/19/2013 03:54:34 am

My claim is that metamorphic rocks are formed by heat and pressure. My evidence in the article is that on the page about metamorphic rocks it states that when heat and pressure combine forces on a large mass of rocks, those rocks can change. Some rock changes are:sandstone to quartzite, limestone to marble, and shale to slate. My evidence from the Brain-Pop video is that it states that because of the pressure caused by the layers of rocks above,metamorphic rocks often get heated up. My reasoning to back up my evidence is that when heat and pressure combine it can shapeshift the rock into another shape. It makes sense that when a rock is weathered, it can change into other forms.

1243

11/19/2013 03:57:21 am

How are metamorphic rocks made?Well very very deep under ground where there is magma,and if the magma is not hot enough the rocks will be cooked.The rocks will get smashed and there is a metamorphic rock.For instance if you read the article in the category metamorphic it says that the rocks need a lot of heat and pressure to be made.It also said heat and pressure can turn one type of rock to a another type.So anyways Meta means "Big"and Morph means"Change"

5524

11/19/2013 03:58:01 am

My claim is that metamorphic rocks are formed by heat and pressure.In the article it says rocks below the lava are metamorphic rocks.It also says that in the video.I also know that because when lava makes igneous rocks the rocks below the lava form metamorphic rocks

5560

11/19/2013 04:01:09 am

I know the rock is volcano out and the rock are big , and I know is out to the volcano ,so is hot , if now volcano shoot out the rock , that time people touch will die.

11/19/2013 04:03:13 am

i dont get it

1235

11/19/2013 04:01:46 am

Heat and pressure can make some rocks become different rocks.Those rocks are called metamorphic rocks.When Sandstone is heated or pressed it becomes Quartzite. When Limestone is heated or pressed it becomes Marble. When Shale is heated and pressed it becomes Slate.In the article said that heat and pressure can change a rock into another type of rock.In the video it said heat and pressure makes a metamorphic rock

1255

11/19/2013 04:06:25 am

Metamorphic rocks are made by heat and pressure. In the article it said that they are formed by heat and pressure.In the video it said heat and pressure make up a metamorphic rock. I know my evidence makes sence because both in the video and the article it said words that I can infer that is made by heat and pressure.

1281

11/19/2013 04:07:12 am

Metamorphic rocks are formed by heat and pressure.The video said heat and pressure make up meta. rocks by rocks surface under pressure from the layers above them. The article said heat and pressure changes the rock into another kind of rock. The evidence suports my claim because the video and the article said heat and pressure make metamorphic rocks.

1301

11/19/2013 04:07:41 am

Metamorphic rocks are made by pressure and heat. They are made out of different types of rocks such as igneous, sedimentary and other metamorphic rocks. These are some examples, shale-slate, limestone-marble and sandtone- quartize. I know that because in the video and the article it said that metamorphic rocks are made out of different rocks.

5082

11/19/2013 04:09:15 am

metamorphic rocks can be any rocks.Because in the video it says rocks below the surface are under pressure from the layers above them.Another reason is because in the "where do rocks come from"it says metamorphic rocks start out as masses of other rocks.my reasoning is because the way the metamorphic is made out of heat and pressure of the other rocks and usually the rock that is going to turn in to a metamorphic rock is on the bottom.

1226

11/19/2013 04:10:31 am

Metamorphic rocks is formed by heat and pressure, and i know that because in the video " Type of Rocks " it said that Metamorphic rocks is formed by heat and pressure. My evidence support my claim because it told me that metamorphic rocks are made by heat and pressure in the video.

1536

11/19/2013 04:10:48 am

Metamorphic rocks are formed by heat and pressure. The sources are earthquakes and volcanos. Heat and pressure can change shale into slate and Limestone into Marble. It makes sense because metamorph means big change. In the video it showed heat and pressure makes up a Metamorphic rock.

1233

11/19/2013 04:15:01 am

Metamorphic rocks are made out of masses of other rocks with heat and pressure.To form the rock with heat,the lava or magma can not be too hot ,otherwise it will melt the rock.Pressure needs an earthquake or layers of heavy sediment on top of each other.For example,using heat and pressure,you can turn sandstone into quartzite,limestone into marble,and shale into slate.

1354

11/19/2013 04:16:01 am

The change of rock from heat and pressure.Heat and pressure can change a rock into a different rock.Heat and pressure make up metamorphic rocks.This makes sense because rocks come from different places.

5083

11/19/2013 04:17:31 am

Metamorphic rocks are made when their is heat and pressure to form one rock into another.heat and pressure can turn sandstone into quartzite. Rocks below the surface under pressure from the layers above them. Metamorphic-mineral grains grains that aligated and flattened

Justin Jamerson (4th Grade Teacher from Memphis, TN)

2/14/2014 03:47:48 am

Great job everybody! This site is awesome and your comments are well thought out and inspiring!

Earth Materials

Leave a Reply.

Archives

Categories