Lens
Light, Sound and Waves
Reversing Glass
At home for 11-14 14-16
- Activity time 15 mins
What you need
- A glass of water
- A piece of paper
- A marker pen
Instructions
- Draw a column of short arrows
- Hold the paper a little way behind the glass and look through the water at the arrows
Results and Explanation
The arrows should point in the opposite direction. The water acts like a glass lens, bending the rays of light and reversing the image of the arrows.
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.
