In science, it is our duty to ask "Why?" and "How?" questions about things that are around us (whether those things are common or extraordinary). Like rocks. I have a couple of those questions for you, Crazy 8s:
- Why does this igneous rock have crystals?
- Where did this rock form? How do you know?
- What type of igneous rock is this?
B: This is a picture taken in the Badlands of South Dakota (there are other "badlands", too). The rocks that you see are sedimentary rocks, and they have NOT always been there. Use your knowledge of the rock cycle to answer this question: (If you need a refresher, view the rock cycle prezi in the blog post below this one.)
- How did these sedimentary rocks get here? (What are some of the events that could lead to the formation of sedimentary rocks?)
71 comments:
A: 1. because it cooled slowly
2. Under the surface of the earth; because if the rock cools above the surface then it does not have crystals and this one does, so it cooled underneath the surface of the earth.
3. intrusive (s/p?)
B: Rain, wind, or snow. Possibly carved by glaciers?
- Brianna Negrete
A.1. Because the rock cooled slowly after being a metamorphic rock.
A.2. Under the surface of the earth. Because if it wasn't it wouldn't have crystals
A.3. Intrusive
B. Rain, Wind, or Snow. Possibly glaciers.
The rock shown has crystals because when it was forming, the magma had more time to cool, which allows the crystals to form. This rock formed beneath the earth, because of the size of the crystals. THe type of igneous rock that the sample is an extrusive. THe size of the crystals proves that it formed in the earth, not on the crust.
This rock has big crystals because it had a long slow time to cool which let the crystals grow.
This rock formed inside the earth, and you can tell this by how big the crystals are. So if they are bigger they were in the earth but if they were smalller they were outsile on the surface.
This rock is intrucive because it has large crystals
A.
1. Because the magma that it once was, was cooled internally, instead of outside the earths crust
2. Inside the earth. because it has crystals that are visable.
3. an introusive rock.
B. There once was glaciers that came through the midwest. These glaciers eroded and compacted into layers. then dust compacted on the top to form layers.
A
1. This igneous rock has crystals because this rock cools slowly inside Earth's surface because of the hot temperatures, and the crystals have more time to cool and to grow.
2. This rock formed inside the Earth's surface and i know that becuase it has large visible crystals whcih is a characteristic of an intrusive igneous rock that forms inside the Earth's surface
3. This is an intrusive igneous rock because it has large visible crystals and that is a result of the rock having more time to cool inside Earth's surface
B. Wathering, erosion, and deposition are all possible events that lead to the formation of Sedimentary Rocks
FIRST PICTURE
1:Because the lava or magma that it was made out of slowly slowly cooled and the crystals formed in the rock.
2:The rock formed on or in magma or lava and over time cooled slowly and formed crystals in the black and gray structure
3:Instrusve
SECOND PICTURE
-At one point there could have been a river or body of water or it could have been just weathering creating this size of sedimentary rock or rocks.
1.) the crystals formed because the magma cooled in a long enough time for those crystals to grow.
2.) the rock was formed below the surface because the crystals are big, so that means that the crystals had a long time to grow.
3.) it is an intrusive igneous rock
4.) the sedimentary rock was made by glaciers eroding the sides of the badlands and compacting layers of sand and dust.
A. 1. Because it was magma that cooled..? Depends on how it cooled, though, that determines the size of the crystals..
2. It formed below the surface because they crystals are large
3. Intrusive Igneous Rock..
B. There could have been a river there before, which brought the sediment, compressed it, and made it sedimentary rock..
The way that the badlands could have come to be as they are today consists of many steps. It would start out as red how magma cooling into igneous. Over the time, weathering and erosion wears away at the rock, depostiting it into different places, such as here in windy South Dakota, where the pieces of rock cement together into different layers. Once again, over time, the moutains that had formed would be worn away and the cycle starts again
when the Igneous rock goes through weather, erodes, deposited it turns in to sedimentary rock.
1. Over time with intense heat and pressure, crystals form with more time to cool in igneous rock.
2. When magma cools, it forms igneous rock.
3. Intrusive because it formed by the cooling and solidification of magma.
B. Over time when metamorphic rock is weathered, erodes, and is deposited, the rocks becomes sedimentary rocks. The badlands could have been igneous rock, but altered by the rock cycle.
A)
1) This igneous rock has crystals because it is intrusive and the magma had a long time to cool so the crystals grew bigger
2) This rock formed inside of the volcano that the magma is from because it had a long time to cool making the crystals larger
3) This rock is an intrusive igneous rock
B) Rocks eroding and the minerals build up under water in layers
1-magma cools forming crystals that then form in in the igneous rock because of extreme heat and pressure and the amount of time that is giving then forms the crystals into the igneous rock
2-so then the whole like magma cooling thing would form the igneous rock
3-the igneous rock is intrusive because it is formed from the cooling and the solidification of the magma
4-its rock weathers, erodes, and is deposited then forming the sedimentary rock.
The way the Badlands came to be constists of many steps. They would have started out as hot magma that was cooling into ingeous rock. The cooled rock would have been pushed up to the surface, and slowly would have been eroded and weathered. The weathering would have caused depostition, despositing the pieces of rock on different places, such as in Windy South Dakota! The rock would have squeezed together forming layers. The layers would have been eroaed again and the cycle continiued.
the igneous rock has crystals because it took a long time to cool. if this rock would have cooled above earth's surface then it would have cooled fast since it is cool on the surface. however, this rock cooled slowly, and underneath the earth's surface. when rocks are formed underneath the suface,the are called intrusive. so this is an intrusive igneous rock that formed slowly underneath the earth's surface!
this sedimentary rock has crystals since the magma this piece of sedimentary rock formed from cooled slowly allowing crystals to forming this type of forming and coolng is called intrusive since the magma cannot cool as quickly while magma cooled out side cools so fast that the sedimentary rock has no time to form crystals
b.sediment from eroded igneous rocks could have gathered at the badlands of south dakota the sediment then formed together over time creating sedimentary rocks
The prescense of large visible crytals in the rock show that the rock cooled slowly over a long period of time and therefore formed well beneath the Earth's surface. Since it was formed underground it is known as an intrusive rock.
1. Because it had more time to cool, so it generated more crystals
2.It formed underground. Because the more time it has to cool it produces more crystals and this rock has a lot of crystals. So it most likely had more time to cool
3. Intrusive
1.it was formed slowly and cooled slowly
2.it was formed underground slowly it has big crystals
3.it is a intrustive rock
4.the badlands could have been underwater so sediment setteled there and compacted to make the rock
A.1. because it cooled very slowly
2. it formed deep in the Earth's crust
3.Intrusive
B. When igneous rock or metamorphic rock weathers, erodes, and is deposited sedimentary rocks form.
A. 1.It has crystals because it had a longer time to cool.
2.It formed under the earth's surface and I know this because it has visible crystals and had a longer time to cool.
3.It is intrusive because it was formed inside the earth's crust.
B. The rock weathers, erodes and is deposited.
A. The igneous rock has crystals because the rock cooled slowly. The rock formed from hot magma that cooled I know because it has crystals and the only way you get crystals is from slow cooling magma. This is an intrusive rock because of crystals and crystal size.
B. The badlands got here from sediment and erosion.
A.1. Becuase it was kept underground for a long period of time getting made and created and the more it stays the more crystals it will have.
2. This rock was formed underground because it has many visible crystals. If it was above ground it would not have any or as many crystals.
3. It is a intrusive rock.
B. They form aboveground. They could be caused by plates hitting eachother and moving upwards and because or erosion and weathering.
A.1. it took longer to cool and turn from magma to a igneous rock.
2.it was formed under the earths surface. i think.
3.Intrusive?
B.rock was eroded, and deposited. then over a long, long, long time, a river went and eroded part of it out showing the differen't parts of it.
1. It has had time to form while cooling from the magma
2. Maybe below the surface of earth because it had its own time to cool down slowly.
3.Intrusive because its so hot below earth, it took a lot of time to cool.
1) The igneous rock has crystals because they form from magma cooling. Crystalization happens under pressure and in hot liquid.
2)This rock formed beneath earth's surface. I can tell because the crystals are larger. Rocks like this will solidify slowly because the area beneath earth's surface is hotter, causing the cooling process to take longer.
3) this is an intrusive rock.
4) sedimentary rocks form when grains of sand are compressed and cemented together. They are made when fragments or rocks settle at the bottom of bodies of water. the farther down the layers are, the older they are.
1. This rock has crystals because it spent a long time cooling.
2. Underneath the earth surface.
3. Is an Intrusive
The sedimentary rocks got there by water, erosion, weathering, and cementing.
A. the rock has crystals because it cooled and hardened over a long period of time, and I know that since it has crystals it cooled below the earths surface where it cooled slower, and it is course grained and felsic
B. the sedimentary rocks got there because rain eventually eroded the top of the hills away and the sediment was deposited where it is.
1,2,3) This rock, is intrusive, meaning it was formed from cooling and solidification of magma beneath the earths crusts. You can tell that it has had time to cool because it formed crystals. The longer it has to cool, the bigger the crystals.
-The rocks could be there from uplift and then it erodes into sedimentary rock.
A: This rock is an extrusive igneous rock. It has crystals because it had alot of time to cool off and grow crystals. This rock formed deep in the Earth's crust, because it had the time to cool off and form crystals, and it didn't cool quickly.. (if it did, it would've formed above Earth's surface becase when they are above
Earth's surface, they cool faster.)
B: The Igneous rocks weathered and eroded and were deposited and now they have become sedimentary rocks. (According to the Rock Cycle Prezi... And my brain/knowledge:)
Drew M.
3) intrusive
4)sedimetary rocks are formed when grains of sand are compressed and cemented together
A1. Because the magam was able to cool slowly
A2.It formed deep in the earths surface because that were the magma is
A3.It is a Intrusive rock because the size of its crystallic
B.When other rocks collectect at the bottum of a lake or water surce and then maybe the water goes away and then erosion stats to work on it makeing the land around it go away
Over a long period of time layers of sediment build up in the badlands area. Through thousands or millions of years of erosion, parts of the lower layers of sediment were uncovered and small mountanious formations were created.
1. igneous rocks have crystals depending on the time it takes to cool down. If it cools fast then igneous rocks have small crystals if it cools slowly then the crystals will be big.
2. igneous rock forms below the surface and above the surface. it melts below the surface and is pushed upward toward the earth's crust. the rock then cools on the earths crust. forming igneous rock.
3. from what I can tell the crystals are small. which means the specific type of this rock is an extrusive igneous rock. which means it cools slowly and has small crystals.
part b:
the sedimentary rock probably weathered and eroded away and was deposited in the ocean or riv etc. and then was forced down and heated to an extreme and melted into magma and then was forced back upward towards the earths crust and cooled and then it started all over again. (not gunna explain again):)
B: The sedimentary rocks could have got there by an igneous rock weathering, eroding, and deposited into that area where there could've been water, the deposited pieces compacted together to form that sedimentary rock.
1.an igneous rock has crystals because it was in the earth and slowly rose up which gives it crystals. the longer it is below earth the bigger the crystals.
2.this rock comes from beneath the earth because it as crystals.
3.intrusive.
1. That rock was formed underground.
2. Underground because it has crystals.
3. It is an INtrusive rock because it was formed IN the Earth.
B:It was once magma. The magma cooled and became an igneous rock. Then the igneous rock weathered, eroded, and the deposited somewhere which formed these sedimentary rocks.
1.because of the time the rock took to cool, this igneous rock has crystals
2.under the earth because, if a rock is cooled above ground, it doesn't have crystals because it cools so fast.
3.Intrusive, formed IN the earth
4. rocks are eroded & weathered away, wash into rivers and streams by rain. The rivers can lead to the ocean where many of particles of rocks, after time get compacted together.
-Hope
A1: The reason it has crystals is because the rock cooled slowly and not fast.
2: It formed in lava rising to the earths surface or crust.
3:inrusive igneous rock
B1:by wind and water carrying them to form layers over the years.
A:
1. The rocks have crystals because it had a lot of time to cool.
2. This rock formed under ground. I know this because it has crystals.
3. This rock is an intrusive rock, because it was formed in the earth.
B:
It started out as magma and when the magma cooled it turned into a Igneous rock and when the Igneous rock weathered,eroded,and was deposited it turned into a Sedimentary rock.
Igneous Rocks form either below or above the surface of the earth. When a rock is formed below the surface of the earth it is an intrusive igneous rock. When a rock is formed on the surface of the earth it is an extrusive rock. The rock pictured is an intrusive rock because when a rock is formed below the surface of the earth it has more time to cool so crystals form and the rock pictured has crystals. So the rock is an intrusive igneous rock.
A: This igneous has crystals because it didnt cool very fast, it cooled inside the earth very slowly so it could form its crystals, this rock would be a intrusive rock because it has cooled inside the Earth.
B: The sedimentary rocks could have been blown from other places then after a while they would concrete together or they could have been a massive tornado a long time ago that carried them to thats spot or other natural accurences could have done the job.
1. this igneous rock has crystals because it cooled slowly.
2. it formed inside the earth from magma slowly cooling while rising to earths surface where its cooler.
3. intrusive because it was made inside the earth so it has crystals.
by paige elsasser.
A:1. this igneous rock has crystals because it cooled slowly
2.these rocks formed underground and i know this because it has cryals so it cooled slowly
3.this is an extrusive
B: tectonic plates colided to form a mountian range and then erosion eroded parts of the mountians away
1.cuz it cooled off really slowly
2.it formed from magma. i remember it from my science book
3.intrusive
B.
could have ormed whtn the rockes blew together and after a series of times the rocks came together forming the badlands.
A)It has crystals because it formed intrusivly inside of the earth. It slowly cooled and as it cooled crystals were formed. Only Intrustive Igneous Rocks can form like this. Extrusive cools too fast.
B)The Sedimentry Rock started as magma and then it cooled and turned into igneous rock. From there it was weathered, eroded, and taken from place to place by wind or water to become Sedmentry.
1.Igneous rocks have crystals because more time is spent in the solidification phase as the magma or lava cools, allowing crystals to grow larger.
2.they are formed when the melted rock, called magma, deep into the earth becomes trapped in small pockets these pockets of magma cool slowly underground, the magma becomes igneous rocks, i know this because they cant form unless there is something hot.
3.It is an extrusive rock because it doesnt have crystals.
A. Because it cooled slowly under the earths crust.I know it is formed under the earths crust because it as cristls.It is intrusive.
B. After many years of ersion and weatheren the sedimentary rock gaethered at that area and cemended there.
It has crystals because it was formed when magma cooled. It formed when magma cooled inside the Earhts crust. I know this because it looks like it has a lot of crystals. It is a intrusive because it was formed insid the Earth.
It happened when rocks inside the Earth melted, rose to the surface, cooled and was eroded and was brought there.
1. the rock has crystals because it cooled either slowly or fastly
2.Inside of the earth because the rrock has small crystals
3.Intrusive
The sedimentary rocks got there because of the rock cycle first it was magma and then the magma cools into igneous rocks then the rock is being weathered ANd the rock is pressurized and heated to form a metamorphic rock which is then turned into then the rock is weastherd and eroded and deposited to make a sedimentary rock and then the cycle repeats
1. Igneous rock has crystals because the magma takes a long time to cool which forms crystals.
2. This rock is fromed probablly formed underneath the ground.
3. This type of rock is ingeous rock
4. these sedimentary rocks got here by the layers of the earth giong through the rockcyle.
Yo Hoegh!
numero uno. Rocks get crystals when they are made in the Earth and take a long lime to get to the top.
numero dose. The rock formed in the Earth because it has crystals. adn that means it was made in the Earth... I think.
numero tr... three (fail.) The rock is an intrusive rock. Because it was made in the Earth, like i said like a million times before.
and the last question. to tell you the truth, i don't know. WAIT. The rock gets uplifed from under the Earth. and also the rock builds up and piles up and makes it bigger.(:
i think that's right. no, i'm pretty sure its wrong.. oh well.
well that's all for today(:
buh bye!
Later, Hoegh!(:
A: This igneoust rock has cryastals because when it was cooling, it was in a warm place and had lots of time to cool. That means that this rock was formed deep inside of the earth. You can tell this by the crystals that you can see in this rock. This kind of rock is called an intrusive rock.
B: The badlands were formed when rocks in other places were weathered and eroded. All of that sedment was compacted down and cemented to form this sedementary rock.
1. The rock took longer to cool.
2. It formed deep down in the Earth, because it has big, visible crystals.
3.It is an instrusive rock.
A:
1. Because it had a long time for it to cool and solidify which gives it time for crystals to form.
2. Below the Earth's surface because that is where it is warmer and that is where it takes longer to solidify which is why it has crystals.
3. Intrusive Igneous Rock
B:
-They got there because of the igneous rock that came above the surface and was then weathered, eroded, and was deposited right there which makes them the sedimentary rocks that they are.
-Igneous rocks have crystals because the magma cools slowly. This rock is formed underground because the temerature is really hot. The rock shown is an intrusive rock.
-I think the rock cooled underground and then presser came from each side of the magma causing it to rise up. Now the badlands are kind of in a mountain form.
sediment eroded and became cemented/compacted to other sediment in water and chemicals forming one thing. it also formed layers in the process...
...on the last comment i made i guess i meant to say it was intrusive...not granite.
1.) this igneous rock has crystals because it is and intrusive rock.
2.) this was formed under the Earth's surface. I know this because it is an intrusive rock and that is where they form.
3.) This is an intrusive rock.
Part B:
magma could have cooled which makes igneous rock and when that is under intense heat and pressure it turns to metamporphic rock and then when that erodes and weathers sedimentary rock is formed.
Part A:
This rock has crystals because it is an intrusive rock that formed below the earth's surface. It was formed below the surface because the crystals are large, which means they were cooled very slowly.
Part B:
It starts out in magma. Then, as it comes to the surface it cools, and you get igneous rocks. Then forces of nature wash away sediments. This forms sedimentary rock. With intense heat and pressure, they become metamorphic rock.
Sediment was eroded, then was washed away by rivers/streams and then compacted together to form the layers.
A)1. Igneous rock has crysals because it cooled and solidified underground where it took longer for the rock to cool.
2. You can tell that this rock was formed underground because it has crystals.
3. This is intrusive Igneous rock because it was formed under earth's surface.
B) The sediment eroded and was washed away by rivers and streams and them was semented together again.
1. Igneous rock starts as magma, when magma cools slowly it forms crystals. When it cools quickly it doesn't have crystals.
2. Below the earth's surface, beacause has crystals so it would have had to cool in a warmmer area
3. Intrusive Igneous Rock
Sedimentary rock forms when sediment is compressed and cemented together.
A1-this igneous rock has crystals because the molten rock cooled inside of a rock and crystalized; and the faster the rock cools, the bigger the crystals.
A2-This rock most likely formed deep in the earth because it has big, visible crystals.
A3-This would be a intrusive igneous rock.
B-These sedimentary rocks were formed by igneous rock weathering and eroding, and being deposited and built up to form the badlands.
A 1. Because the magma cooled slowly.
2. It was formed deep beneath the Earth's surface because the warm temperature down there caused the magma to cool very slowly, allowing time for crystals to form.
3. Intrusive igenous rock
B 1. Various sediment weathers away, erodes and then compacts, forming the sedimentary rocks.
1. This igneous rock has cyrstals because the rock formed deeper in the ground so it took longer to cool.
2. This rock formed under ground, because it has crystals, and for it to have crystals it has to take time to cool.
3. It is a intrusive igneous rock.
B. First the rocks weather away and get carried away in a river or body of water the rocks settle at the bottem.
A.
1.An igneous rock has crystals becase it took longer to cool.
2.This rock probly farther under ground wich would cause the cooling process to be slower due to the fact that its not a cool as the top layer of the Earth.
3.It is an intrusive rock, because intrusive means it has crystals and extrusive means it doesnt have crystals.
B.
1.First Magma cools, and forms igneous rocks, then the rock(s) weather, erodes... and is depostited and forms a SEDIMENTARY ROCK and that is how the sedimentary rocks in the bad lands are formed.
1.This igneous rock has crystals because this rock was formed deep below the earth meaning that crystals form when there is a high temperature, and crystals don't form when the rocks are near the top of the earth.
2.This rock was formed deeper inside the earth otherwise known as formed intrusively because the crystals are visible on the rock's surface.
3.Since the rock has crystals it is formed intrusively, and this rock is felsic because it light colored and rich in elements such as: aluminum, potassium, silicon, and sodium,
B.The badlands possibly formed by starting as magma and cooling into igneous rock, and the rock could have eroded into the sedimentary rock that it is now.
1. They have crystals because they formed by cooling and going up towards the surface of Earth.
2. In the earth because it takes a long time for it to cool from magma in the earths core.
3. It is a intrusive igneous rock.
B. It started off as a medamorphic rock and then is erodes, weathers, and deposites to become a sedimentary rock.
1. this igneous rock has crystals because it was deeper in the earth so it took longer to cool.
2. In the earth because it has crystals
3. Intrusive igneous rock.
B. Rocks got swept away and settle in the bottem in a river or lake.
A.
1. The rock has crystals because it cooled slowly below the Earth's surface and the crystals had time to form.
2. It formed below the Earth's surface because the rock has crystals. A rock only has crystals if it had time to cool below the Earth's surface.
3. The rock is an Intrusive Igneous Rock.
B. The rock was weathered away and the grains of sediment were eroded and carried to other places like the Badlands.
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