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Question:

How to make a self-propelled boat using these items?

These are the items that can be used:1) 4 tongue depresser sticks2) 2 paper clips3) 2 rubber bands4) 1 piece of aluminum foil (45cm x 40cm)5) 1 sheet of newsprint6) 1 meter of masking tapeNOTE - I am not cheating, our teacher told us that we can use anything on the internet.

Answer:

here's my idea: 1) form a boat hull shape using the tin foilUse 2 tongue depressors to provide some structure to wrap the foil aroundTape in place2) take one tongue depressor, break it in halfTape it back together with each side on an angle (opposite angles)Look at a photo of an airplane or boat propeller to see what it should look like3) Bend a paperclip into a hook and tape it to part of the propellertake the other side of the paperclip and bend it so it is sticking straight through the center of your propellerTape this end of the paperclip to the last tongue depressorTape that depressor to the bottom of your tin foil hull4) Use attach the second paper clip near the end of that last tongue depressor in the shape of a hook5) run an elastic band from one paperclip hook to the other 6) Spin the propeller by hand to wind up the elastic band7) place in water and let goIt should move about 1/2 an inch ;-)

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