How to make it
7 steps. Tap one when it's done.
One index card, ten folds, and a frog that actually jumps when you press its back end. Make two and race them across the table.
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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.
The zigzag at the back is a spring. Pressing it stores energy in the bent paper, and when your finger slips off, the paper straightens all at once and shoves the frog into the air.