States of Matter and Phase Changes

Front

What is the definition of a solid?

Back

A solid is a state of matter characterized by a definite shape and volume, where particles are closely packed together and vibrate in place.

Front

What is the definition of a liquid?

Back

A liquid is a state of matter that has a definite volume but takes the shape of its container, with particles that are close together but can move past one another.

Front

What is the definition of a gas?

Back

A gas is a state of matter that has no definite shape or volume, with particles that are far apart and move freely.

Front

What is sublimation?

Back

Sublimation is the phase change in which a solid turns directly into a gas without passing through the liquid state.

Front

What is deposition?

Back

Deposition is the phase change in which a gas turns directly into a solid without passing through the liquid state.

Front

What is evaporation?

Back

Evaporation is the phase change in which a liquid turns into a gas, typically occurring at the surface of the liquid.

Front

What is condensation?

Back

Condensation is the phase change in which a gas turns into a liquid, often when it cools down.

Front

What is freezing?

Back

Freezing is the phase change in which a liquid turns into a solid as it loses heat energy.

Front

What is melting?

Back

Melting is the phase change in which a solid turns into a liquid as it gains heat energy.

Front

What happens to particles during freezing?

Back

During freezing, particles lose energy, move closer together, and arrange themselves into a fixed structure.