Phase Changes of Matter

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without becoming a liquid first.

Front

What state of matter has an indefinite shape and volume?

Back

Gas has an indefinite shape and volume; it takes the shape and volume of its container.

Front

What happens to the number of particles when matter changes states?

Back

The number of particles does not change because matter cannot be created or destroyed.

Front

What is melting?

Back

Melting is the process of changing from a solid to a liquid.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is the process of a liquid turning into a gas called?

Back

The process of a liquid turning into a gas is called evaporation.

Front

What is condensation?

Back

Condensation is the process where a gas changes into a liquid.

Front

What is freezing?

Back

Freezing is the process of changing from a liquid to a solid.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into a gas.