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

Front

Is whipping cream a physical or chemical change?

Back

Whipping cream is a physical change.

Front

Is roasting a marshmallow a physical or chemical change?

Back

Roasting a marshmallow is a chemical change.

Front

Is burning wood a physical or chemical change?

Back

Burning wood is a chemical change.

Front

What happens to the chemical composition during a physical change?

Back

The chemical composition remains the same during a physical change.

Front

What happens to the chemical composition during a chemical change?

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The chemical composition changes during a chemical change, resulting in new substances.

Front

Is rancid butter a physical or chemical change?

Back

Rancid butter is a chemical change.

Front

Is sour milk a physical or chemical change?

Back

Sour milk is a chemical change.

Front

What are some indicators of a chemical change?

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Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.