aim: how do rocks change over time? topic: unit 2 main idea: the rock cycle
TRANSCRIPT
Aim: How do rocks Aim: How do rocks change over time?change over time?
Topic: Unit 2Topic: Unit 2Main Idea: The Rock CycleMain Idea: The Rock Cycle
1) What is the rock cycle?1) What is the rock cycle?
• It is a series of changes that causes a rock to change from one form into another.
2) What causes the rocks to 2) What causes the rocks to change?change?
• Weathering and erosion
• Heat and pressure
• Movement of crustal plates
3) How do we read the rock cycle 3) How do we read the rock cycle chart?chart?
• A) Arrows toward a box=
how to become that rock
• B) Arrows away from a box=
what can happen to change that rock
4) What process changes 4) What process changes sediments into a sedimentary rock?sediments into a sedimentary rock?
• Deposition and burial, compaction and cementation.
5) How does a sedimentary rock 5) How does a sedimentary rock become a metamorphic rock?become a metamorphic rock?
• Heat and/or pressure (metamorphism)
6) How does a metamorphic rock 6) How does a metamorphic rock become an igneous rock?become an igneous rock?
• Melting into magma then solidification
7) What three things can happen to 7) What three things can happen to an igneous, sedimentary or a an igneous, sedimentary or a
metamorphic rock?metamorphic rock?• Weathering and erosion, Heat and/or
pressure and Melting
8) What can happen to sediments?8) What can happen to sediments?
• Deposition and Burial, Compaction and Cementation and Erosion.
9) What is the only thing that can 9) What is the only thing that can happen to magma?happen to magma?
• Solidification
10) Where is metamorphic rock 10) Where is metamorphic rock found?found?
• In between sedimentary and igneous rock.
Today’s Exit Card Today’s 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?