Chemical vs Physical Changes

Front

What is a chemical change?

Back

A change where one or more new substances are created.

Front

What is a physical change?

Back

A change that does not create new substances, only alters the form or appearance.

Front

Give an example of a chemical change.

Back

Rusting of iron.

Front

Give an example of a physical change.

Back

Crumpling a piece of paper.

Front

What happens during a chemical change?

Back

The chemical composition of substances changes, resulting in new substances.

Front

What happens during a physical change?

Back

The physical properties of a substance change, but its chemical composition remains the same.

Front

Is melting ice a physical or chemical change?

Back

Physical change.

Front

Is burning wood a physical or chemical change?

Back

Chemical change.

Front

What is an indicator of a chemical change?

Back

Production of gas, change in temperature, or formation of a precipitate.

Front

What is an indicator of a physical change?

Back

Change in state (solid, liquid, gas) without altering the substance's chemical identity.