How to Make a Sundial

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BASF

Have you ever used a sundial? It's a great way to tell time when no other form of a clock is available.

How does it work?

The surface of a sundial has markings for each hour of daylight. As the Sun moves across the sky, another part of the sundial casts a shadow on these markings. The position of the shadow shows what time it is.

Click here to download a PDF of the instructions for this experiment to print and recreate at home!

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