Physical and 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.

Front

True or False: In a physical change, the substance formed has different properties than the original substance.

Back

False

Front

Which of the following is an example of a physical change?

Back

Melting butter.

Front

What happens to the chemical composition of a substance during a physical change?

Back

The chemical composition remains the same.

Front

What is an example of a reversible physical change?

Back

Melting ice.

Front

What is an example of an irreversible physical change?

Back

Breaking a glass.

Front

Which of the following is a physical change: burning wood, melting ice, or rusting?

Back

Melting ice.

Front

What is dissolving? Is it a physical or chemical change?

Back

Dissolving is a physical change where a substance mixes with a solvent.

Front

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

Back

A physical change does not change the substance's chemical identity, while a chemical change does.

Front

What is an example of a chemical change?

Back

Burning paper.