How will you show the presence of water vapour in the air
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To show the presence of water vapour in air, we will perform an activity. Material needed - a bottle full of waterMethod:Keep the bottle full of water in the refrigerator and bring it out of it after 2-3 hrs. After 30-40 seconds, you will see small water droplets which will form on the surface of the bottle of water. Observation : we will see the water vapour rising in the air.
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The presence of water vapour in air can be demonstrated by the following experiment: We take a steel tumbler and put some well crushed ice in it. ... When these water vapour come in contact with the cold, outside surface of steel tumbler, they condense to form tiny droplets of water.
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