This rock-rolling experiment totally rocks! Find out if rocks roll faster depending on their shapes.
What You'll Need:
- Differently shaped rocks
- Watch with second hand
- Pen and paper
Step 1: Pick six differently-shaped rocks of about the same size and weight. One might be rounded, one might be flat on one side, and one might be almost square or totally flat.
Step 2: One by one, release these rocks at the top of a steep hill and time how long each takes to roll to the bottom. Try to predict which rocks you think will move the fastest before letting them go.
Step 3: Compare your times and see how close your predictions came to being correct.
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