Chemical and Physical Changes in Matter

Front

What is a physical change?

Back

A physical change is a change in which the form or appearance of a substance changes, but its chemical composition remains the same. Examples include cutting, bending, or melting.

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

What happens during melting?

Back

Melting is the process where a solid turns into a liquid when heat is applied.

Front

What is an example of a physical change?

Back

Cutting paper is an example of a physical change.

Front

What is an example of a chemical change?

Back

The browning of bananas after sitting out is an example of a chemical change.

Front

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

Back

A physical property can be observed without changing the substance's identity (e.g., color, shape), while a chemical property can only be observed during a chemical reaction (e.g., flammability).

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What is an example of a chemical property?

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Flammability is an example of a chemical property.

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What occurs during a chemical reaction?

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During a chemical reaction, substances undergo a transformation to form new substances with different properties.

Front

What is an example of a physical change involving water?

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Ice melting into water is an example of a physical change involving water.

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid, often when it cools down.