2.1 - States of Matter and Phase Changes

Front

What are the three main states of matter?

Back

Solid, Liquid, Gas.

Front

What is the definition of a solid?

Back

A state of matter with a definite shape and volume.

Front

What is the definition of a liquid?

Back

A state of matter with a definite volume but an indefinite shape.

Front

What is the definition of a gas?

Back

A state of matter with neither a definite shape nor a definite volume.

Front

What is volume?

Back

The amount of space an object takes up.

Front

What does the law of conservation of mass state?

Back

The amount of matter stays the same after a phase change.

Front

What happens to molecules in a solid?

Back

Molecules are closely packed together and vibrate in place.

Front

What happens to molecules in a liquid?

Back

Molecules are close together but can move past one another.

Front

What happens to molecules in a gas?

Back

Molecules are far apart and move freely.

Front

What is a phase change?

Back

A transition of matter from one state to another, such as melting or freezing.