The Thousand-Year Ledger

The Ledger · Science · Grade 1

The secret in a twang

Watch a plucked rubber band. That quick wiggle has a name: vibration.

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Let’s look a little closer

A stretched rubber band moves back and forth after a gentle pluck. The moving band makes nearby air vibrate, and sound travels through the air to our ears.

Resting a fingertip lightly on the band can stop its movement and shorten the note. Lift your finger and pluck again to start another vibration.

Some vibrations are too small or too fast to see clearly. The box guitar gives you a movement you can watch as well as hear.

What we can discover

In the real world

Vibrating materials can make sound. A rubber band's vibration can be seen, heard, and gently felt in this activity.

What the story imagines

In Ollie’s world

Ollie's feather hands and his conversation with Maya are parts of the made-up story.

Keep exploring

These sources are for a closer look with a grown-up.

Discover by doing

Try a little experiment.

Science10 min

Make a note. Stop a note.

A tissue box and a rubber band become a tiny sound investigation. Watch, listen, and feel the difference.

Grade 1 · At home or in class