MAKE A LIGHT BEAM APPEAR

You will need:

• Aluminium foil
• 1 elastic band
• 1 pencil
• Sticky type
• Black paper
• 1 torch
• 1 page of the news paper
• Some flour

HOW TO DO IT:

1. First, cut  a piece of aluminium foil and cover the torch. Fix it with the elastic band.  
2. Then, make a small hole with the pencil.
3. Then, cut a strip of black paper and attach it to the torch with the sticky tape.
4. After that, ask to one person to stand next to you with their eyes closed and their hands up on the sides of her face. Point with the torch far with the black paper towards your friend. Then, switch on the torch on and off a few times so your friend can’t tell if it’s on or off. Then switch it off. Ask to you friend to open his/her eyes. Can he/ she see light? Switch on the torch. Can your friend see any difference?
5. Finally, put the torch on a chair. Put the newspaper on the ground in front of the torch.
6. Then go to one side of the newspaper out of the torch light.
7. Sprinkle some flour onto the paper by rubbing your hands together.

What can your friend see now?

By: Urko