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. Examples include melting, freezing, and bending.

Front

What is a chemical change?

Back

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

Front

Is melting ice cream a physical or chemical change?

Back

Melting ice cream is a physical change.

Front

What happens during a physical change?

Back

During a physical change, the form of a substance changes, but its chemical identity remains the same.

Front

What happens during a chemical change?

Back

During a chemical change, the substances involved undergo a transformation that results in the formation of new substances.

Front

Give an example of a physical change.

Back

An example of a physical change is boiling water.

Front

Give an example of a chemical change.

Back

An example of a chemical change is wood burning.

Front

What is an example of a physical change that involves a change of state?

Back

Melting ice is an example of a physical change that involves a change of state.

Front

What is an example of a chemical change that produces gas?

Back

Baking soda reacting with vinegar to produce carbon dioxide gas is an example of a chemical change.

Front

Is bending metal a physical or chemical change?

Back

Bending metal is a physical change.