Monday, 17 August 2015

Expanding in Science

Today we did some science experiments involving ice and heat. We were focussing on observing the reactions and making predictions about what was going to happen.


The ice is melting inside the cup of water, the level of water didn't increase as much as we predicted because when water freezes it expands.



We placed a balloon over the top of an empty bottle and then put the bottle into a bowl of hot water. We predicted that the balloon would rise because the air in the  bottle would hear up and expand which in turn will make the balloon rise and grow in size. We also predicted that the small bottle would have a bigger balloon as the area was smaller. The boiling water makes steam which acts like a hot air balloon and makes the ballon expand, both balloons rose to the same diameter and height.

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