States of Matter

Front

What are the three main states of matter?

Back

Solid, liquid, gas.

Front

Describe the arrangement of molecules in a solid state of matter.

Back

Molecules are tightly packed together in a fixed position.

Front

What process occurs when a solid turns into a liquid?

Back

Melting.

Front

What is the term for the process of a liquid turning into a gas?

Back

Vaporization.

Front

How do the energy levels of particles in a gas compare to those in a solid?

Back

Particles in a gas have more energy than those in a solid.

Front

What is the defining characteristic of a liquid state of matter?

Back

A liquid has a definite volume but takes the shape of its container.

Front

What happens to the molecules of a substance during freezing?

Back

The molecules lose energy and become more tightly packed.

Front

What is the term for a change that does not alter the identity of a substance?

Back

Physical change.

Front

What is sublimation?

Back

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

Front

What is condensation?

Back

The process where a gas changes into a liquid.