Physical and Chemical Changes

Front

What is a physical change?

Back

A change in size, shape, or matter that does not create something new.

Front

What is a chemical change?

Back

A process that transforms one substance into another, resulting in new properties.

Front

True or False: Freezing is a physical change.

Back

True

Front

What happens to thermal energy when a liquid freezes?

Back

Thermal energy is removed.

Front

What is another name for a chemical change?

Back

Chemical reaction.

Front

True or False: Boiling is a chemical change.

Back

False

Front

What happens to thermal energy when a liquid boils?

Back

Thermal energy is added.

Front

What state of matter has a definite shape and volume?

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 spreads apart to fill its container?

Back

Gas.