Physical or Chemical Change/Phases

Front

What type of heat causes a gas to condense to a liquid?

Back

Decreasing heat causes a gas to condense to a liquid.

Front

What is boiling water classified as?

Back

Boiling water is a physical change.

Front

What process destroys metal through oxidation?

Back

Rusting is a chemical change that destroys metal through oxidation.

Front

What is the majority phase or state of matter in the universe?

Back

The majority of the universe is made of plasma.

Front

What is the freezing point of water in Celsius?

Back

0°C is the freezing point of water.

Front

What is a physical change?

Back

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

Front

What happens to the molecules of a substance during a physical change?

Back

The molecules of a substance may change their arrangement but not their chemical structure during a physical change.

Front

What happens to the molecules of a substance during a chemical change?

Back

The molecules of a substance rearrange to form new substances during a chemical change.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.