Discovering Atoms
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The earliest humans understood matter on a very basic, practical level. Through trial and error they determined which rocks could make good spearheads and good pounding or grinding stones. The Bronze Age began about 2000 BCE when rocks containing copper and tin were heated together. The combination of the two metals yielded the alloy bronze. Metals played a significant role in the growth of chemical knowledge. Important questions were posed--what...
Format:Library Binding
Language:English
ISBN:1448847001
ISBN13:9781448847006
Release Date:August 2011
Publisher:Rosen Young Adult
Length:112 Pages
Weight:0.75 lbs.
Dimensions:0.4" x 6.1" x 9.0"
Age Range:12 to 17 years
Grade Range:Grades 7 to 12
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