Physical vs. Chemical Changes

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. Examples include melting, freezing, and ripping paper.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Examples include rusting, burning, and food digestion.

Front

Which change strictly alters the physical properties of a substance?

Back

Physical change.

Front

What is conductivity?

Back

Conductivity is the property of matter that allows a substance to transfer heat or electricity.

Front

Give an example of a physical change.

Back

Ripping up paper.

Front

What happens during a chemical change?

Back

New substances are formed.

Front

What is an example of a chemical change that happens inside your body?

Back

Food being broken down by enzymes in your stomach.

Front

What is melting?

Back

Melting is the process of a solid turning into a liquid when heat is applied.

Front

What is freezing?

Back

Freezing is the process of a liquid turning into a solid when heat is removed.

Front

What is an example of a physical property?

Back

Color, shape, and size are examples of physical properties.