1. Bell Work 9/27/2016

2. Show what you know… hardness Sedimentary Sedimentary
SPI The mineral’s resistance to being scratched is known as the mineral’s __________. SPI What type of rock is known for stratification? SPI What type of rock is formed by compaction and cementation?
hardness
Sedimentary
Sedimentary

3. Show what you know…
By which process does metamorphic rock become sediment?
Heat and pressure
Cooling
Weathering and erosion
Melting

4. This week’s plan:

5. Today’s Goals: Describe the processes that drive the rock cycle.
Identify the three different types of rocks.

6. Sedimentary Rock Formed by compacting and cementing
Has strata (layers)
Layers from deposition
contains fossils
EXAMPLES:
Conglomerate
Sandstone
Siltstone
Shale
Limestone

7. Metamorphic Rock Examples: Marble Slate Schist Formed by heat/pressure
Deep in the Earth
Foliated=grains are in bands
Nonfoliated=grain are not in bands
Recrystallization=crystals change in size or minerals change in composition
Examples:
Marble
Slate
Schist

8. Metamorphic Rock

9. Igneous Rock Ex. Granite Ex. Rhyolite Intrusive:
*Cools beneath earth’s surface *Cools very slowly *Creates large crystals
Extrusive:
*Cools above earth’s surface *Cools quickly *Creates very small crystals
Formed by melting and cooling
There are two types: Intrusive and Extrusive
Ex. Granite
Ex. Rhyolite

10. Rock Identification Activity
At each station, there is a different rock.
Observe the rock in great detail.
Use the guide to identify the rock as either a SEDIMENTARY, METAMORPHIC, or IGNEOUS rock.
Challenge! If time allows, use the second key to identify the specific name for the rock.
Rotate on the SQUEAK!

14. Show what you know…
Can a sedimentary rock be made from metamorphic rocks? Why or why not?