Physical and Chemical Changes

Front

What is a physical change?

Back

A physical change is a change that alters the form or appearance of a substance, but not its chemical composition.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that describes how it interacts with other substances, such as flammability.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed without changing its chemical composition, such as the ability to conduct electricity.

Front

What is a chemical change?

Back

A chemical change is a transformation that results in the creation of new substances with different chemical properties.

Front

What happens during a physical change?

Back

During a physical change, the substance may change its state (solid, liquid, gas) or appearance, but its chemical identity remains the same.

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 result in the formation of new substances.

Front

What is an example of a chemical change?

Back

Rusting iron is an example of a chemical change.

Front

What is flammability?

Back

Flammability is a chemical property that describes a substance's ability to catch fire and burn.

Front

What is the boiling point?

Back

The boiling point is a physical property that indicates the temperature at which a substance changes from a liquid to a gas.