Professor O will help you learn: Sound travels as vibrations along the tight string from one cup to the other.
⚠️ An adult must pierce the cans, as tin edges and the base holes can be sharp. If using real tins, cover any sharp rim with tape. Paper cups are a safer choice for younger children.
Play through the project step by step, with narration read aloud.
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Steps
Tap any step to play from there — the narration plays inside the player.
Make it your own: Test if it still works round a corner, or with a longer string.
