Science Pure Substances and Mixtures - Vocabulary

Front

The smallest unit of an element that maintains the properties of that element. The building block of all matter.

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atom

Front

The state of matter that has a definite volume but not a definite shape.

Back

liquid

Front

A substance made up of atoms of two or more different elements joined by chemical bonds.

Back

compound

Front

The change of stage from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures.

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evaporation

Front

The change of a state to a liquid.

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liquefaction

Front

The change of a state to a gas.

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vaporization

Front

The change of state from a liquid to a gas that occurs at a specific temperature.

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boiling

Front

A sample of matter either a single element or a single compound, that has definite chemical and physical properties.

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pure substance

Front

The change of state from a gas directly to a solid.

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deposition

Front

State of matter that does not have a definite volume or shape.

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gas