Making a Rainbow

We made a rainbow

 by Alizae and Tane                                                                                                                                                                                                                                                                   

You will need:

• a  glass 

• white paper

• cardboard

• scissors

What to do:

1. To  make  rainbow  fill  the  glass  with   water.
2. Put the  glass  on  the  paper  in  a  sunny place.
3. Cut  a  long  narrow  slit  in  the  cardboard.
4. Put the cardboard   behind  the  glass  so the  sun  shines through the slit.
5. Move the cardboard until you see a tiny rainbow on the paper.

Why does this happen?

The water in the glass splits up the white light into the colours of the rainbow.

Can you see the tiny rainbow on the white paper.