Chemical and Physical Changes

Front

What is a Physical Change?

Back

A change in which matter stays the same and its chemical composition does not change.

Front

What is a Chemical Change?

Back

A change that results in the formation of new chemical substances.

Front

What state of matter has molecules that are tightly packed together and vibrate in place?

Back

Solid.

Front

What state of matter has a definite volume but takes the shape of its container?

Back

Liquid.

Front

What state of matter has molecules that move freely and rapidly?

Back

Gas.

Front

What happens to the molecules in a solid when it is heated?

Back

They gain energy and may change to a liquid.

Front

What is an example of a Chemical Change?

Back

Burning wood.

Front

What is an example of a Physical Change?

Back

Melting ice.

Front

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

Back

Evaporation.

Front

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

Back

Condensation.