How many of me?

Measure a tree trunk with parts of your body, such as your arms or feet. Or if the tree is really big, with your whole body.
Time needed: 5 minutes

A child's hand on the bark of a tree
8055juma/ Shutterstock

Go further

Measure a tree shadow with your body at a different times of the day. Does the length of the shadow change?

Did you know when the Sun is lower in the sky in the afternoon, you'll have a long shadow whereas when the Sun is above you at midday, you'll have a very small shadow?

All done?

Time to uncover a fact or joke.

Beta

These activities are under construction, help usimprove them with your feedback