Cup Telephone
Your voice makes the cup bottom shake, and the tight string carries those shakes to the other cup.
Grab this
- 2 paper cups
- Long string
- A pencil
- 2 paper clips
Do it in 3 steps
Ask a grown-up to poke a small hole in the bottom of each cup with the pencil.
Push the string through each hole and tie it to a paper clip inside.
Walk apart until the string is tight. Talk into one cup and listen in the other!
DO IT WITH MEYour turn! Beat the clock.
Press start, then put the screen down and build. We'll cheer when time is up.
⭐ Bonus round
Does it still work if the string is loose? Try it!
🧠 Why it works
Your voice makes the cup bottom shake, and the tight string carries those shakes to the other cup.
Did you do it?
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