Friday, March 16, 2012

Rock Cycle

How does the rock cycle work?  What does it take for rocks to change form?  Connect to the following link and animate to find out.  Give me your thoughts.


Rock Cycle Animation

7 comments:

  1. Bryant Winters and Drew FitzGibbonMarch 19, 2012 at 5:47 AM

    First lava flows out of volcano, this lava hardens into igneous rock and then is eroded into sediment. The sediments get transported into a river where they are deposited. The sediments go through compaction and cementation and form sedimentary rock. then this sedimentary rock goes through metamorphism and forms metamorphic rock. This metamorphic rock then melts and the process starts all over again. This activity was very helpful and showed a good animation of the rock cycle.

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  2. Alex Stevens and Julia GlennMarch 19, 2012 at 5:52 AM

    The rock cycle begins with molten rock, or magma, rising to the earth's surface and cooling/hardening to form igneous rock. Then weathering and erosion cause those igneous rocks to break into sediments and be carried elsewhere (places such as rivers). Next, the sediments are compacted and cemented together (by the movement of the river), forming sedimentary rocks. Finally, the rocks experience extreme heat and/or pressure, stretching them, and then forming metamorphic rocks. When, those rocks melt, the cycle starts over.

    I found the rock cycle interesting because it shows that all three types of rocks can change into each other, not just to metamorphic rocks, as you might expect.

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    Replies
    1. Bryant Winters and Drew FitzGibbonMarch 19, 2012 at 5:57 AM

      That is very interesting that at some point in time one rock could have been all three types.

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  3. Lorraine Lowrey and Jen Keyser :)March 19, 2012 at 5:59 AM

    It changes with pressure and time. With lava beginning to flow and hardening. Then erodes and deposits in oceans and rivers. Then it melts and forms and starts all over. It was very interesting.

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  4. Magma flows out of a volcano, and hardens. Lava turns into Igneous rocks and then rain and wind erode it into sediments. Sediments get transported into rivers, and then are deposited into oceans. They harden and turn into sedimentary rocks. These rocks are dragged down and then go through metamorphism. The metamorphic rocks get melted and this process starts all over again. This animation helped us find how rocks are melted again.

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  5. BrianSchraffenbergerMarch 19, 2012 at 6:01 AM

    First molten rock or/and magma rises to the earths surface and cools to form igneous rock and is eroded into sediment. The sediment is carried to rivers and then cemented and compacted together to form sedimentary rocks. The rocks experience extreme tempatures or pressure and forms metamorphic rocks.

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  6. It starts when magma forms at the Earth's surface & cools to form igneous rocks. Then, sediment is carried to the river & is cemented & compacted to become sedimentary rocks. Finally, The rock's tempature changes & becomes a metamorphic rock.-Dominic Deutsch

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