States of Matter and Phase Changes

Front

What is a physical change?

Back

A physical change is a change that doesn't change the identity of a substance.

Front

Define a liquid.

Back

A liquid has a definite volume but an indefinite shape.

Front

What state of matter are the particles in a gas?

Back

In a gas, the particles are far apart and move freely.

Front

What state of matter are the particles in a solid?

Back

In a solid, the particles are closely packed and vibrate in place.

Front

What is sublimation?

Back

Sublimation is the process of a solid changing directly to a gas without becoming a liquid.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into gas at temperatures below boiling point.

Front

What is condensation?

Back

Condensation is the process where gas turns into liquid.

Front

What is freezing?

Back

Freezing is the process where a liquid turns into a solid.

Front

What is melting?

Back

Melting is the process where a solid turns into a liquid.

Front

What is deposition?

Back

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