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Science: matter and its changes

Puzzle Type: Educational
student: Daisy McComas
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Across
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A quantity of a substance,the weight of which measured in any chosen unit is numerically equal to gram
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Any combination or blend of different kinds, qualities, etc.
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Composed of two or more elements, parts,ingrediants
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A hypothetical particle of matter so minute as to admit of no division.
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Of the same kind or nature, essentially alike.
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The principle that in any closed system subjected to no external forces the mass is constant irrespective of its changes in form
Down
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The substance or substances of which any physical object consists or is composed.
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Changed by chemicals
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A component or constituent of a whole or one of the parts into which a whole may be resolved by analysis.
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A usually reversible change in the physical properties of a substance, as a size or shape
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Different in many ways
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That of which an object consists physical matter or material.