This afternoon P3-P5/4 class in school grew their own rainbows.

 

We needed:
kitchen roll, water, coloured pens and a jug to pour the water.

First we coloured in the kitchen roll with different colours at each side. Then we put water into 2 cups. After that, we put the edges of the kitchen roll into each of the cups and then we watched our rainbows grow.

The rainbows grew because the water touched the pen on both sides and it travelled up the kitchen roll until it met in the middle.

 

Have a look at how we got on.