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The Rock Cycle. A LAB. 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. Crayon Rock Lab. You have be given a sample of crayon rock. List some characteristics about the rock:. Igneous Rock.

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The Rock Cycle


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    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

    5. I I Igneous Rock

    6. 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

    7. I Igneous Rock Weathering and Erosion Sediments

    8. 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:

    9. 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

    10. Sediments Compaction and Cementation Weathering and Erosion Sedimentary Rock

    11. 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

    12. 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

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

    14. 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?

    15. I Igneous Rock Melting Magma Melting Metamorphic Rock

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

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

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

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

    20. 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