Enrichment Activity for 5-11 11-14
- Level Elementary
What you need
- A nylon comb
- A water tap
- Turn on the tap until you have a very thin stream of water
- Now grab your comb
- Run the comb through your hair several times
- Slowly bring the comb towards the water, 10cm below the tap
Results and Explanation
When the comb is about 3cm away, the water bends towards it! Some objects, like hair and plastic, develop an electrical charge when rubbed together.
The charge in your comb attracts tiny electrical charges in the water molecules, pulling them towards it.