First Place Science Fair Projects 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Harris, Elizabeth Snoke 作者

Sterling Pub Co Inc

译者

2006-5 出版日期

128 页数

$ 19.95 价格

HRD

丛书系列

9781579904937 图书编码

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发表于2024-11-25

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First Place Science Fair Projects 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

First Place Science Fair Projects 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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"Will my hot chocolate cool down faster if I add the cold milk now or later? Will ketchup flow faster if it's stirred first?" Taking first place in the science fair has never been so much fun These biology, chemistry, and physics experiments, devised by a real scientist and former high school chemistry teacher, really rock. That's because each activity answers questions that actually fascinate kids--whether they're exploring the laws of motion by smashing eggs against a wall, learning how to use diapers to prevent fire, or going "Supersonic" as they measure the speed of sound. Also, there's great advice on designing your own experiments, catching errors that could affect the results; and presenting the project so that it will impress the judges.

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