Kids Science Activities
Hot or cold
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How to do it
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- Take a straw and Blow through the straw.
- Feel the air coming out through the straw.
- Are you sure it is cool. Check it out.
- Take a thermometer. shake well to bring the level of the mercury down.
- Now let us begin with the experiment.
- Blow through the straw on the bulb containing the mercury will rise.
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Explanation
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- When the air is blown from our mouth, it enters the straw which contracts the air. The contraction makes the air warer.
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Flash Cards
