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21 minutes
Each book in this unique series of practical application math books features an 11” x 17”
Thunder and Lightning
including Frogs
Incredible Birds
From Gunpowder to Laser Chemistry Book Reading Comprehension 21 minutesGrades: 6 12 The Chain Reactions series explains the history and development of some major 21st century scientific advances. This title tells the amzaing story of chemical reactions, from ancient methods of making gunpowder to the development of new types of metals, plastics, medicines, dyes, and manufactured products. Library bound, 64 pages.
US$ 50.99
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US$ 37.00
