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发表于2024-11-24
Science Projects about the Physics of Toys and Games pdf epub mobi txt 電子書 下載 2024
-- Rigorous experiments for middle school and up.-- Excellent ideas for science projects; some even recreate famous experiments.-- Books have careful drawings and safety tips.
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Science Projects about the Physics of Toys and Games pdf epub mobi txt 電子書 下載 2024