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Foil Boat Cargo Test
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Description
After exploring river habitats, make two foil boats at home and test which carries more cargo before water comes aboard.
What to prep
- Two pieces of foil
- Shallow tray with about 2 cm of water
- Large identical plastic blocks
- Towel
Cost: FreeBest time: Anytime
Play guide
- 1Shape two palm-sized foil pieces into boats with raised edges. Make one wide and one narrow.
- 2Float them in a shallow tray. Take turns adding identical large plastic blocks, counting each boat's load.
- 3Reshape the weaker boat and try again with the same blocks. Compare the load it now carries.
Success signals
The child changes boat shape and tests it against a counted load.
If it's tricky
The foil leaks: double the foil or test one waterproof plastic lid first to see how loading works.