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Physical Science Quiz 2: Matter, its properties, and its changes.

Across
Has a definite volume but an indefinite shape.
A phase change from gas to liquid.
When thermal energy increases, particles move ____________.
Down
Another word for thermal energy.
A phase change under conditions of extreme heat from gas to plasma.
Particles move _____________ when heat is removed.
Has an indefinite shape, is made up of charged particles, and has an indefinite volume.