Pick one make.

What do you want to make?

Open one lab. Follow the picture. Check the test before We made this.

• Draw · 4–8 · 15–25 min

  Net detective

  Eleven cube nets work. The rest cheat. Find the cheats.

• Draw · 3–8 · 30–40 min

  Paper balance

  Fold a beam. Balance it on a pencil. Put clips on both sides. When it sits level, the masses match.

• Draw · 4–8 · 20–30 min

  Möbius strip

  Tape a loop with a twist. Draw a line. It comes back on “the other side.” Cut down the middle. Surprise — that is data.