Daily Archives: January 9, 2014

Experimenting with light and materials share

In December, we did an experiment on transparent, translucent and opaque materials.

What you need:

• Torch
• Mini whiteboard
• Lots of different materials

 

What to do:

1. Turn on torch and point it at the board.

2. Put a piece of material about half way between the torch and the mini whiteboard.

3. Check if any light comes through the material.

 

What should happen:

• If the light can’t go through the material, it is opaque.
• If a little bit of light goes through the material, it is translucent.
• If all the light goes through the material, it is transparent.

Normal results:

1. Tissue paper (Translucent)

2.  Bubble wrap (Transparent)

3.  Cardboard (Opaque)

4.  Cling film (Transparent)

5.Tim foil (Opaque)

6. Baking paper (Translucent)

 

By Ben Cullinane & James Harrington 🙂