Physcial and chemical change

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Home : 2001 : October : 8

Physcial and chemical change
By sy

Making those rockets is a great tie in with physical and chemical change and with matter....because you are using a liquid (vineger) a solid (baking soda) and a gas is being produced (bubbles which are carbon dioxide) this
fits in to many different learning outcomes for children....be careful though...as I was showing a group of kids this experiment...my rocket wasn't working...I had no idea how powerful the rocket would be...and I looked at it..of course holding it directly to my face...and it exploded....baking soda and vinegar can really sting...however it was kind of funny, and we had a good laugh about

it! I am not sure now if the post said you could use baking soda...I found that was the cheapest way...and if you really want to get creative...you can get them to make a chart of how much baking soda they use...to make the rocket fly...messy but very fun!
Also the film canisters that should be used are from the "Fuji" film...the ones that snap inside.