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| Re: 1954 American Flyer, um, infomercial (490071) | |||
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Re: 1954 American Flyer, um, infomercial |
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Posted by RonInBayside on Fri Sep 14 12:48:57 2007, in response to Re: 1954 American Flyer, um, infomercial, posted by JohnL on Fri Sep 14 11:37:14 2007. LOL!When I was a kid, we used to make grenades from old plastic soda bottles. You fill it half-way with vinegar; add a layer of vegetable oil, then dump baking soda gently on top. The oil keeps the two reagents separated for a while. Close the top, shake it vigorously, then toss... Seriously, though, it'smy understanding chemistry sets today mirror what's going on in the classroom - much smaller quantities of chemicals to demonstrate principles of reaction, smaller containers, finer measurements. |
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