1. Bell Work 9/27/2017 Get your comp book!
Add com book page 16 “3 Types of Rocks”

2. Waves dropping sand on the beach
Weathering, Erosion, or Deposition
Waves dropping sand on the beach
Deposition

3. Caves being formed by acid rain dissolving underground limestone
Weathering, Erosion, or Deposition
Caves being formed by acid rain dissolving underground limestone
Weathering

4. Wind blowing sand from one location to another
Weathering, Erosion, or Deposition
Wind blowing sand from one location to another
Erosion

5. Weathering, Erosion, or Deposition
Water getting into cracks, freezing, and breaking the rocks or pavement apart
Weathering

6. Ponds filling up with sediment and becoming marshes
Weathering, Erosion, or Deposition
Ponds filling up with sediment and becoming marshes
Deposition

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

9. Comp book page 16 3 Types of Rocks

10. 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
Two types
Ex. Granite
Ex. Rhyolite

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

12. 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

13. Metamorphic Rock

14. ROCK
IDENTIFICATION:
Which rock is it??

15. Which type of rock might contain evidence of past life?#1
Which type of rock might contain evidence of past life?
Sedimentary

16. Which type of rock contains large crystals?#2
Which type of rock contains large crystals?
Igenous

17. Which type of rock has visible, flat layers?#3
Which type of rock has visible, flat layers?
Sedimentary

18. Which type of rock changes by intense heat and pressure?#4
Which type of rock changes by intense heat and pressure?
Metamorphic

19. #5
Which type of rock forms from sediments compacting and cementing together?
Sedimentary

20. Which type of rock comes from liquid rock material (magma)?#6
Which type of rock comes from liquid rock material (magma)?
Igenous

21. Which type of rock has 2 types: extrusive and intrusive?#7
Which type of rock has 2 types: extrusive and intrusive?
Igenous

22. Which type of rock is formed deep within the earth?#8
Which type of rock is formed deep within the earth?
Metamorphic

23. Which type of rock has wavy banding called strata?#9
Which type of rock has wavy banding called strata?
Metamorphic

24. Which type of rock is formed from magma that cools down?
#10
Which type of rock is formed from magma that cools down?
Igenous

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

26. 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!