States of Matter

Front

What is the process called when a liquid turns into a solid?

Back

Freezing

Front

What happens to the particles in a liquid when it is cooled and its volume increases?

Back

The particles move slower.

Front

What is the particle theory of matter?

Back

The theory that all matter is made up of tiny particles that are in constant motion.

Front

Which state of matter is easier to compress: solids, liquids, or gases?

Back

Gases are easier to compress than solids.

Front

What change of state occurs when particles in a solid begin to move slowly past each other?

Back

Melting.

Front

What is the state of matter characterized by a definite shape and volume?

Back

Solid.

Front

What is the state of matter that has a definite volume but no definite shape?

Back

Liquid.

Front

What is the state of matter that has neither a definite shape nor a definite volume?

Back

Gas.

Front

What happens to the energy of particles when a substance freezes?

Back

The energy decreases.

Front

What is sublimation?

Back

The process where a solid changes directly into a gas without becoming a liquid.