Marble Madness Lab Activity
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- 6 books (or boxes) of roughly the same thickness
- 1 marble (or small ball)
- 2 rulers: one to use as a ramp and one with which to measure
- stopwatch (or watch/clock with a seconds hand)--Many cellphones have a stopwatch feature, and many analog clocks have a seconds hand. Alternatively, I have provided an online stopwatch gadget.
- A calculator is optional.