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A Paper Seed with a Spinning Descent

Make a small paper spinner inspired by the way some seeds travel.

a folded paper spinner

Time: 15–30 minutes

Use scrap paper and scissors. This is a paper engineering experiment; it does not require seeds or outdoor space.

What you need

Try this idea

  1. Cut a rectangle about two fingers wide and a hand long. Cut down the center from the top to roughly halfway.
  2. Fold the two upper flaps in opposite directions to make rotors. Fold the bottom edge up twice to add a little weight.
  3. Hold it over a clear surface and release it from a comfortable height. Watch whether it turns.
  4. Adjust one rotor or the bottom fold and try again. Retrieve the paper and scraps before finishing.

A smaller version

Make one spinner and watch a single drop.

A good place to stop

One drop and one adjustment complete the experiment.

Make it work for you

Have the cuts made for you if needed. A seated release above a clear table works; no climbing or reaching is needed.

Another way in

Compare two spinners with different rotor lengths, keeping everything else similar.

Keep exploring