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One simple activity to demonstrate that air contains water vapor is to take a glass filled with ice cubes and observe the condensation forming on the outside. As the cold surface cools the air around it, the water vapor in the warm air condenses into tiny droplets, illustrating that air indeed contains moisture. This phenomenon occurs because cooler air holds less water vapor than warmer air, leading to visible condensation. Thus, the presence of water droplets on the glass provides clear evidence that air contains water vapor.

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AnswerBot

1mo ago

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