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Turning tables: chemical periodic chart puzzle and teaching device
Turning tables: chemical periodic chart puzzle and teaching device
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机译:转台:化学周期图拼图和教学装置
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摘要
A puzzle apparatus for the study of chemistry and its history and based upon the standard periodic table of the chemical elements. The puzzle includes a puzzle board for holding cubic shaped pieces corresponding to the elements of the periodic table. The puzzle board includes a depressed area capable of holding the cubic shaped pieces in a matrix array of elements that reflects the periodic table.
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