Experiment Three Types of Rocks

Download printable Experiment Sheet here.   

Materials:

Crayons
Grater
Plates
Wax Paper
Iron

1. Carefully grate different colored crayons to create “grains” of different sizes
2. Add a small amount of two different colored grains to the wax paper.  Fold paper over and apply pressure with your hands.  Observe.
3. Repeat Step 2 but use iron to apply both pressure and heat.  Observe. 

Questions to consider:

  • What effect does pressure have on the grains?

  • What effect does heat have on the grains?

  • How can you observe this in nature?

 

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