Your discovery goal
Connect a rubber band's vibration with its sound by comparing a freely moving band with a gently stopped band.
A little help from a grown-up
Before you begin
A grown-up removes any plastic from the opening and fits the band around the box, across the hole, without overstretching it. Check that a gentle pluck makes a visible movement and a sound.
Let’s give it a try.
Tick each step as you go. There’s no rush to wonder.
Pause and wonder
What did you discover?
Notice the moving band and its twang. Touching it gently can stop the movement and shorten the sound; plucking starts the vibration again.