By David Shaw, 27 October 2022
Two tubes, both the same weight and the same size, and yet slightly different. Can you guess which one will win the rolling race? Safety: This activity uses a sharp scalpel or scissors to cut a cardboard tube. Ask an adult to help.
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By David Shaw, 22 August 2019
Want to reach out and touch something with a puff of air? This tiny air cannon shoots vortexes of air that can be felt from metres away!
