Today we did an experiment with tissues and coloured pens.

We wrapped the tissues around the pens, and we scrunched it up, took it off the pen to make a shape like a caterpillar and made designs with coloured pens. We then put some water onto the caterpillars and it became coloured because the colour on the inside started to show, and it grew longer!

But we had to be very careful so the tissue didn’t break.

The teacher asked the children what they think would happen when they added the water and why they thought that would happen. Some children guessed correctly. We spoke about the tissue absorbing the water and that is why the caterpillars grew bigger.