A couple of weeks back Naomi asked if we could do some science experiments. Natually this strongly appealed to me, so we duly obliged. We had a go at learning how an airplane wing works
with a piece of paper,
seeing water surface tension in action, and making some bubbles by mixing acid and alkali. Here is the latter...
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| Fill balloon with bicarbonate of soda (alkali) |
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| fill bottle with vinegar (acid) |
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| seal balloon onto bottle, and pour alkali into acid |
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| the reaction makes carbon dioxide, which makes bubbles and blows up the balloon |
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