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Harness a powerful simple machine to launch some tasty treats. Safety: When dealing with food, use clean hands and clean equipment. Be careful with your catapult and make sure no one is standing where you’re aiming it.

Rulers are great at measuring straight lines, but how do you measure a curvy line? Here’s one way, using a wonderfully messy diagram!

NASA’s Ingenuity helicopter has made history by flying on Mars. To celebrate the first flight of a copter on another planet, here’s a simple unpowered helicopter you can build at home!

Drop the ruler, watch for the jump… that’s the point of drop jump! Can you work out which matchbox tray the coin will fall into?

This simple pattern reveals a heart from a circle and a lot of straight lines!