Enrichment Activity for 5-11 11-14
What you need
- Two identical glass bottles
- A friend
- Ask your friend to hold one bottle up to their ear
- Standing quite close to your friend, blow across the mouth of your bottle and in the direction of your friend, so that you make a clear note
- Your friend will hear a similar note in their bottle!
Results and Explanation
The two identical bottles vibrate at the same natural frequency. So when one vibrates and produces a note, this makes the other vibrate and produce a similar note.