States of Matter

Front

What is a solid?

Back

A solid is a state of matter that has a definite shape and volume. The molecules in a solid are closely packed together and vibrate in place.

Front

What is a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container. The molecules in a liquid are close together but can move around each other.

Front

What is a gas?

Back

A gas is a state of matter that has no definite shape or volume. The molecules in a gas are far apart and move quickly, spreading out to fill the space available.

Front

What happens during melting?

Back

Melting is the process where a solid changes into a liquid when it is heated.

Front

What happens during freezing?

Back

Freezing is the process where a liquid changes into a solid when it is cooled.

Front

What is evaporation?

Back

Evaporation is the process where a liquid changes into a gas, usually when it is heated.

Front

What is condensation?

Back

Condensation is the process where a gas changes into a liquid, usually when it cools down.

Front

What is boiling?

Back

Boiling is the process where a liquid changes into a gas throughout the liquid, usually when it reaches a certain temperature.

Front

What is the difference between a solid and a liquid?

Back

A solid has a definite shape and volume, while a liquid has a definite volume but takes the shape of its container.

Front

What is the difference between a liquid and a gas?

Back

A liquid has a definite volume but takes the shape of its container, while a gas has neither a definite shape nor volume.