Front

What is a solid?

Back

A state of matter with a fixed shape that does not take the shape of its container.

Front

What is a liquid?

Back

A state of matter that can be poured and takes the shape of its container.

Front

What is a gas?

Back

A state of matter that has no fixed shape and expands to fill its container.

Front

What happens during evaporation?

Back

When water changes from a liquid to a gas, usually caused by heat.

Front

What must be done to change water from solid to liquid?

Back

Raise the temperature.

Front

What must be done to change water from liquid to solid?

Back

Lower the temperature.

Front

What is condensation?

Back

The process where gas changes into a liquid, often when cooled.

Front

What is melting?

Back

The process where a solid changes into a liquid when heated.

Front

What is freezing?

Back

The process where a liquid changes into a solid when cooled.

Front

What is the boiling point of water?

Back

The temperature at which water changes from a liquid to a gas, typically 100°C (212°F) at sea level.