How To: Weigh something you can't see with this cool science trick

Weigh something you can't see with this cool science trick

How to Weigh something you can't see with this cool science trick

With this cool science trick by Mr. G, learn how to weigh something you can't even see! Using a stick, some string and two balloons, you can see in your very own home that air, invisible as it is, has weight. This is a good example to show atmospheric pressure.

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