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 slicing.

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 cooking.

Front

Is slicing bread a physical or chemical change?

Back

Slicing bread is a physical change.

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Is adding sugar to coffee a physical or chemical change?

Back

Adding sugar to coffee is a physical change.

Front

What happens during a chemical change?

Back

During a chemical change, the substances involved undergo a transformation that results in new substances being formed.

Front

What is an example of a chemical change in cooking?

Back

An example of a chemical change in cooking is frying pancakes, where the batter transforms into a different substance.

Front

Are hard boiled eggs a physical or chemical change?

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Hard boiled eggs are a chemical change.

Front

What is an example of a physical change?

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An example of a physical change is melting ice.

Front

What is the difference between physical and chemical changes?

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

Front

What is an example of a physical change that occurs in nature?

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An example of a physical change in nature is the freezing of water into ice.