Homemade Clouds in a Bottle The clouds you see in the sky are formed when water vapor is cooled enough to form tiny water droplets. When moist, cool air rises to a higher altitude, it cools, water droplets are formed, and voila - you have clouds. In this experiment we'll duplicate this same process by causing air in a bottle to rapidly cool. Put a small amount of water into the jar. Just enough to cover the bottom. Place the glove into the jar with the fingers pointing down. Stretch the mouth of the glove over the top of the jar. Carefully insert your hand into the glove being careful not to break the seal. Pull your hand (with the glove still on it) outward…
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