Sound Wave
Light Sound and Waves

Screech

At home for 5-11 11-14


What you need

  • Paper
  • Scissors

Instructions

  1. Fold a small piece of paper three times so you have a concertina
  2. Cut two slits into the middle ridge
  3. Hold the paper up to your mouth and blow

Results and Explanation

The high-pitched sound you hear is created by the paper vibrating. 

These experiments have not been specifically safety tested for home use but we believe them to be safe if the instructions are followed. Adult supervision or direction is recommended as appropriate. All experiments are carried out at your own risk.

2021 IOP Awards

Teachers of Physics Award

Recognising and celebrating outstanding contributions to the field of physics education.

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