Aim: How do rocks change over time? - PowerPoint PPT Presentation

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Aim: How do rocks change over time?

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Aim: How do rocks change over time? Topic: Unit 2 Main Idea: The Rock Cycle 1) What is the rock cycle? It is a series of changes that causes a rock to change from one ... – PowerPoint PPT presentation

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Title: Aim: How do rocks change over time?


1
Aim How do rocks change over time?
  • Topic Unit 2
  • Main Idea The Rock Cycle

2
1) What is the rock cycle?
  • It is a series of changes that causes a rock to
    change from one form into another.

3
2) What causes the rocks to change?
  • Weathering and erosion
  • Heat and pressure
  • Movement of crustal plates

4
3) How do we read the rock cycle chart?
  • A) Arrows toward a box
  • how to become that rock
  • B) Arrows away from a box
  • what can happen to change that rock

5
4) What process changes sediments into a
sedimentary rock?
  • Deposition and burial, compaction and cementation.

6
5) How does a sedimentary rock become a
metamorphic rock?
  • Heat and/or pressure (metamorphism)

7
6) How does a metamorphic rock become an igneous
rock?
  • Melting into magma then solidification

8
7) What three things can happen to an igneous,
sedimentary or a metamorphic rock?
  • Weathering and erosion, Heat and/or pressure and
    Melting

9
8) What can happen to sediments?
  • Deposition and Burial, Compaction and Cementation
    and Erosion.

10
9) What is the only thing that can happen to
magma?
  • Solidification

11
10) Where is metamorphic rock found?
  • In between sedimentary and igneous rock.

12
Todays Exit Card
  • List the steps in which magma turns into a
    metamorphic rock.
  • Diva Dollar Question
  • What are the two rock names given to shale when
    it is changed by extreme pressure by mountains or
    by extreme heat?

13
Answers to the multiple choice questions
  • 1. (2)
  • 2. (2)
  • 3. (4)
  • 4. (3)
  • 5. (3)
  • 6. (3)
  • 7. (2)
  • 8. (1)
  • 9. (4)
  • 10. (4)
  • 11. (2)
  • 12. (4)
  • 13. (2)
  • 14. (4)
  • 15. (2)
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