Question

show an experiment how atmospheric pressure works​

Answer 1

Answer:

Wrap a lump of clay around the straw to form a seal. Blow hard into the straw—then stand back. Your blowing increases the air pressure inside the sealed bottle. This higher pressure pushes on the water and forces it up and out the straw.

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Answer 2

Answer:

The air inside a balloon is under pressure as it is squeezed by the rubber. When you place the inflated balloon on top of the bottle, the air pressure on top of the bottle becomes higher. That pushes down on the water in the bottle, pushing it through the straw and making the fountain stronger

Explanation:

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