In class we read the story of ‘Noah’s Ark and the first rainbow’.  This gave us the idea to try to create our own rainbows.

We set up cups of coloured water then dipped the ends of kitchen roll into each one.  It was left overnight and we saw that the colours had climbed up the kitchen roll and stopped when they met the other colours.  We saw that the green and blue worked the best, although the green looked more like yellow.

In this experiment, we used coloured pens to make stripes at the ends of the kitchen roll then put them into water.  We watched the colours move really quickly up and along the kitchen roll to create a rainbow.  It moved so fast it was like a ‘stampede’.