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 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 a chemical reaction and changes the composition of the original substance. Examples include baking, rusting, and burning.

Front

Is melting ice cream a physical or chemical change?

Back

Melting ice cream is a physical change.

Front

Is ripping paper a physical or chemical change?

Back

Ripping paper is a physical change.

Front

Is baking a cake a physical or chemical change?

Back

Baking a cake is a chemical change.

Front

What happens during a chemical change?

Back

During a chemical change, the atoms in the reactants rearrange to form new substances with different properties.

Front

What is an example of a chemical change?

Back

Toasting a bagel is an example of a chemical change.

Front

Is glass shattering a physical or chemical change?

Back

Glass shattering is a physical change.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition of a substance, while chemical changes do.