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Science: matter and its changes

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