How to play
7 steps. Tap one when it's done.
Fold the dart, throw it, measure it, write it down. Then change one thing and throw again. By the end you'll have a plane that goes twice as far as your first one and a chart to prove it.
Tell us about the activity. Please leave out names and contact details.
Nothing sharp, nothing hot, nowhere far. Tell someone what you're up to, then go ahead and do it on your own.
7 steps. Tap one when it's done.
A plane flies as long as air moving over the wings pushes up harder than gravity pulls down. Nose weight keeps it pointed forward; a slight upward bend at the back of the wings keeps the nose from dropping. Getting those two balanced is the whole challenge.