Chemical and Physical Changes

Front

What is a Physical Change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a Chemical Change?

Back

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

Front

What happens to the molecules in a Gas?

Back

The attractive forces are too weak to keep molecules close together, allowing them to move freely and rapidly.

Front

What is the Freezing Point of water?

Back

The temperature at which liquid water freezes, which is 32 degrees Fahrenheit.

Front

What is a Solid?

Back

A state of matter with a fixed shape and volume, where molecules are very close together.

Front

What is a Liquid?

Back

A state of matter that has a definite volume but takes the shape of its container, with molecules that are close together but can move past one another.

Front

What is the Boiling Point?

Back

The temperature at which a liquid turns into vapor.

Front

What is an example of a Physical Change?

Back

Ripping paper.

Front

What is an example of a Chemical Change?

Back

Burning wood.

Front

What is Plasma?

Back

A state of matter where gas is energized until atomic electrons are no longer associated with the nucleus.