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Gomestic > Tags > science
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science |
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 | | Making a Simple Periscope | | by CHAN LEE PENG, Sep 24, 2007 | | Make your own simple periscope to see around corners and over walls. The periscope is suitable for school science projects and also good for your kids to play around. | | Comments(3) Liked It: 15 |
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 | | How to Make a Steelyard | | by DL, Mar 26, 2007 | | The second part of my science project about balance and levers. Unfortunately, I couldn't find the first part, sorry. | | Comments(0) Liked It: 0 |
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