Today we went to the hall and we had a look at some cool science. We learnt a lot of things when we were there. Also there were a lot of amazing things like when they showed us how a baby nappy works. In the baby nappy there is something called "Polymer," that turns liquid into a solid. So he got a cup of water with yellow food colouring to make it look like pee, and poured it into a cup of Polymer and then he tried to pour it onto his head but it became solid. This show was mostly about chemicals. Also there was a really cool one that he turned on a blow dryer and he put a ping-pong ball on top and it floated! When he moved it, the ball followed the blow dryer! He taught us that the thinnest object in the world that can be seen with the naked eye is a bubble! He made a lot of tiny bubbles and at the end he made a gigantic bubble that he could probably fit in. Once he put it around his head and it was so cool! I wonder how he tossed a firework out of his hand!
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