1. The Rock Cycle
A LAB

2. Crayon Rock Lab
Each student needs to collect the following from the front of the class:
Crayon
Piece of foil
Plastic utensil
Rock Cycle handout

3. Crayon Rock Lab
You have be given a sample of crayon rock. List some characteristics about the rock:

4. Igneous Rock formed by cooling and hardening of hot liquid rock
Characteristics
Solid
No fossils
No bands

6. I I
Igneous Rock

7. Crayon Rock Lab
Unwrap your crayon and start to create a pile of crayon shavings on your aluminum foil.
You can trade crayons if you would like to have different colours
You will need a decent size pile, so give yourself at least 5 minutes to do this

8. Weathering and Erosion
Igneous Rock
Weathering and Erosion
Sediments

9. Crayon Rock Lab
Now fold over the foil and press down on the pile as hard as you can
Unwrap the foil very carefully
Describe what this looks like:

10. Sedimentary Rock
formed when sediments are pressed and cemented together
Characteristics
Visible layers- curved or flat
Has pores and holes
Has fossils
Makes up 70 % of the rock on the earth

12. Compaction and Cementation Weathering and Erosion
Sediments
Compaction and Cementation
Weathering and Erosion
Sedimentary Rock

13. Crayon Rock Lab
Bring your shavings to Mrs. Ashton and let the rock melt until it is soft to touch and the colours swirl but do not mix together
now let the rock cool
Describe what your rock looks like now

14. Metamorphic Rock formed when rocks are changed by heat and pressure
Characteristics
Rarely has fossils
Alternating bands of light and dark rock
Rarely has pores or holes

16. Weathering and Erosion
Igneous Rock
Heat and Pressure
Heat and Pressure
Metamorphic Rock
Sediments
Weathering and Erosion

17. Crayon Rock Lab
Come back to the front and heat your rock again until the wax has melted into a smooth pool of liquid wax and all the colours have blended together
What has it turned into?

18. Igneous Rock Melting Magma Melting Metamorphic Rock

19. Crayon Rock Lab Allow the wax to cool
What rock type has your crayon rock returned to?
Igneous

20. Weathering and Erosion
Cooling
Igneous Rock
Melting
Weathering and Erosion
Heat and Pressure
Magma
Sediments
Metamorphic Rock

21. Compaction and Cementation Weathering and Erosion
Metamorphic Rock
Sediments
Compaction and Cementation
Weathering and Erosion
Heat and Pressure
Sedimentary Rock

22. Weathering and Erosion
Igneous Rock
Magma
Heat and Pressure
Melting
Weathering and Erosion
Metamorphic Rock
Sediments

23. Definitions
Igneous Rock- formed by cooling and hardening of hot liquid rock
Sedimentary Rock- formed when sediments are pressed and cemented together
Metamorphic Rock- formed when rocks are changed by heat and pressure