Stone skimming and angles
Skim stones, count the bounces, then work out which angle and which stone wins.
A competition that turns into a fair test without anyone mentioning science.
What you need
- Flat stones
- Safe water access with an adult
- Paper for your results
How to do it
- 1
Sort your stones by shape and thickness before you throw.
- 2
Skim ten stones and record the bounces for each.
- 3
Try throwing flatter, then higher, and record both.
- 4
Work out which shape and which angle gave the most bounces.
- 5
Explain your findings to someone else, using your numbers.
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