Physical and Chemical Changes

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances, often accompanied by energy 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 rusting?

Back

A chemical reaction where iron reacts with oxygen and moisture to form iron oxide, commonly known as rust.

Front

What is an example of a chemical change?

Back

Lighting a match, which produces heat, light, and new substances.

Front

What is an example of a physical change?

Back

Cutting a piece of paper, which changes its shape but not its chemical composition.

Front

What happens during digestion?

Back

It is a chemical change where food is broken down into simpler substances that the body can absorb.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not.

Front

What is the state of matter where particles are tightly packed?

Back

Solid.

Front

What is an indicator of a chemical change?

Back

The formation of a gas, a change in color, or the production of heat.

Front

What is an example of a physical property?

Back

Color, shape, size, and state of matter.