Physical Science Unit 1

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A state of matter that has no definite shape but a definite volume is a

The amount of matter in an object is its

When water vapor in a cloud changes back into a liquid, it is undergoing

Scientists who study matter and its changes are

Color, shape, and smell are all examples of

Natural plasma is found in

The amount of matter in a unit volume is called

The change of state from a solid directly to a gas is known as