Project

Let’s make a submarine like the one in Jules Verne’s book! Ask an adult to help you make your submarine.

Ask an adult to make holes in the plastic bottle in the position shown in the photo.

Tape five heavy coins to each end of the bottle. This makes the bottle heavy so that the holes face down.

Attach the flexible straw. Use modelling clay to keep it in place.

a washing-up liquid bottle modelling clay a plastic tube a flexible straw waterproof tape ten heavy coins

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Attach a plastic tube to the end of the straw so that it can go deep under water.

The submarine sinks in water because the water enters the holes.

Blow through the tube to fill the submarine with air again. As the water escapes, the submarine rises. With practice, you can make the submarine float at different depths.

Now you have your own submarine. Have fun!

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Nautilus from 'Twenty Thousand Leagues Under the Sea'.