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Particle Nature of Matter

Across
Anything that has weight and takes up space.
Two words. A very cold liquid made from nitrogen gas
A scientific measurement of volume, usually for liquids
Down
The smallest possible unit of matter.
Two words. A container from which air is removed by a vacuum pump.
The space occupied by a solid, liquid or gas.
a substance that flows freely but is of constant volume,
firm and stable in shape; not liquid or fluid
a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape