1. Crayon Rock Cycle - Logistics

Time
45-50 minutes

Grouping
individual

Materials
Each student needs:

• Copy of the Rock Cycle Diagram
• 1 wax crayon (Crayola brand crayons works well)
• 1 plastic knife
• 6 inch square of aluminum foil
• Styrofoam or other cup to hold hot water
• Source of hot water (I use a hot pot style electric water heater - see image)

For the whole class:

• Samples of sedimentary, metamorphic, and igneous rock, sorted into boxes of the same rock type
• 3-6 large containers or water pitchers for water that has cooled down in the students’ cups

Setting
classroom