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We are going to do an experiment called water fountain.

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The materials we need for this experiment are the following.

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A camera, water, a soldering iron, a straw, a bottle and a balloon.

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This experiment is based on the law of Boyle,

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that studies the relationship between volume and pressure for a gas at a constant temperature in a container.

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The steps to follow are these.

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We make a hole in the bottle with the soldering iron.

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We put the straw on the hole and water on the bottle.

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We inflate the balloon and we place it carefully on the bottle.

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We let the water go little by little.

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We decided to do this experiment because it is very easy to explain something that is

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difficult to see. That everything occupies space also works, although we don't see it.

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And this is our experiment.