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Balloon Rocket

Build it⏱ 5 minutesAges 5-10

Air rushing out the back pushes the balloon forward. That is how real rockets move.

Let's do it ↓

Grab this

  • 1 balloon
  • A long piece of string
  • 1 straw
  • Tape
Supplies for Balloon Rocket

Do it in 3 steps

Balloon Rocket step 1
1

Thread the string through the straw and tie it between two chairs.

Balloon Rocket step 2
2

Blow up the balloon and pinch the end. Do not tie it.

Balloon Rocket step 3
3

Tape the balloon to the straw, then let go and watch it zoom.

DO IT WITH ME

Your turn! Beat the clock.

Press start, then put the screen down and build. We'll cheer when time is up.

5:00

⭐ Bonus round

Does a bigger balloon go farther? Test it.

🧠 Why it works

Air rushing out the back pushes the balloon forward. That is how real rockets move.

A grown up should be nearby for every challenge. Clean up together when you are done.

Did you do it?

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