Magic Powder

Today we did an experiment. We got into pairs and had a cup with sodium polyacrylate. Me, Sofia and Taylor were in a group. We did not know it was sodium polyacrylate. Then Chris gave us some water with a spoon. We had to put it in the cup. It made the powder expanded!!! We touched it and it felt soft but looked hard. We put 32 tea spoons of water in. Then Mrs Hickford put in to tea spoons of salt. The powder had air bubbles in it! It was turning into liquid. It looked really cool. I thought that it was going to fizz just like Finnian's volcano. I learnt that disposable nappies take 450 years to break down. Have you ever done this experiment? I found it fun and exiting because I didn't know what was going to happen next.