Physical or 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 dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves breaking and forming bonds between atoms. Examples include rusting, burning, and digestion.

Front

Is food digested in the stomach a physical or chemical change?

Back

Chemical change.

Front

Is spoiled meat a chemical or physical change?

Back

Chemical change.

Front

Is rancid butter a chemical or physical change?

Back

Chemical 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 changes their chemical structure, resulting in new substances.

Front

Give an example of a physical change.

Back

Ice melting into water.

Front

Give an example of a chemical change.

Back

Baking a cake.

Front

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

Back

A physical change involves changes in physical properties without altering chemical composition, while a chemical change results in new substances being formed.