Edible Rocks

This past week we learned about the 3 types of rocks and how they are formed. We learned a song about the Rock Cycle and made some yummy edible rocks as models of the different types of rocks. For our igneous rocks, which are formed when molten rock cools and hardens, we microwaved chocolate until it melted and then each student got a sample that they watched cool and harden. For our metamorphic rocks, which are formed when heat and pressure are applied, we stacked 3 starbursts and used our hands to apply heat and pressure, causing the 3 starbursts to combine as 1 "rock". Last, for our sedimentary rocks, we used graham crackers as our layers of sediment and layered them using icing as our clay that holds the sediment together. We had a lot of fun with this activity and enjoyed eating our tasty creations!

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