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The Exploding Lunch bag


As part of our transition work for high school, Miss Ratcliffe, a science teacher from Suffolk NewAcademy, came to complete a science experiment with us. We used bicarbonate of soda, vinegar and hot water to create an explosion. We put the mix into a lunch bag and zipped it up. The gas inside the bag expanded until it burst.


Some people didn’t do the zip up properly so the gas escaped preventing the bag from exploding!


In our lunch bags, a chemical reaction occurred. This is an irreversible change and can be identified because a new material is formed. In this case we created carbon dioxide.



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