Foil boat cargo challenge

What you need

• Kitchen foil, three equal squares
• A bowl or sink of water
• A pile of coins or marbles
• Paper for scores

How to do it

1. 1

   Cut three squares of foil exactly the same size.

2. 2

   Shape one into a flat raft, one into a deep cup and one into a long canoe.

3. 3

   Float each and add coins one at a time, counting as you go.

4. 4

   Record how many each boat held before water came in.

5. 5

   Build a fourth boat using what you learnt and try to beat all three.

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