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The top documents tagged [crystals crystals]
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crystals crystals
STATES OF MATTER Four States Solid Liquid Gas Plasma.
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Chapter 17 Rocks and Minerals. Composition of the Earth During the early molten stage of the Earth the heavier abundant elements, such as iron and nickel,
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Lets Rock!. 3 Types of Rocks There are 3 different types of rocks: Igneous Sedimentary Metamorphic IgneousSedimentaryMetamorphic.
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