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Atoms
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Submicroscopic particles that constitue the fundamental building blocks of ordinary matter.
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Molecules
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Atoms that bind together in specific geometrical arrangments.
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Chemistry
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The science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules.
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Hypothesis
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A tentative interpretation or explanation of the observations.
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Scientific law
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A brief statement that summarizes past observations and predicts future ones.
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Law of Conservation of Mass
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In a chemical reaction, matter is neither created nor destroyed.
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Scientific Theory
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One or more well-established hypotheses. a Model for the way nature is and tries to explain not only what it does but why.
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Atomic theory
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Matter is composed of small, indestructable particles called atoms.
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Matter
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Anything that occupies space and has mass.
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Substance
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Specific instance of matter. examples: air, water, sand, etc.
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State
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Solid, liquid, or gas
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Solid matter
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Atoms or molecules pack close to eachother in fixed locations. Although the atoms or molecules vibratem they do not move around or pass eachother. Fixed volume and rigid shape.
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Crystalline
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Solid matter. Its atoms or molecules are in patterns with long range, repeating order. ex: diamond
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Amorphous
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Solid state. Its atoms or molecules do not have any long-range order. Ex: glass or plastic
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Liquid matter
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Atoms or molecules pack about as closely as they do in solid matter, but they are free to move relative to eachother. liquids have fixed volume but not a fixed shape.
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