Lewis structure Set, Help students determine the types of bonds in a substance, draw Lewis structures, and construct models of molecules, Chemists find the use of models helpful to construct Lewis structures and study covalent bonding
Model Homo Erectus Dmanisi Skull 3, 1.7 MYA, Dmanisi site in Georgia has yielded incredible hominin fossil finds of the species H. Erectus, adding further documentation to the presence of Homo existing outside of Africa, Size: 20.0L x 12.9W x 15.9H (cm)
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