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.

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What is a chemical change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances with new chemical and physical properties.

Front

Give an example of a physical change.

Back

An example of a physical change is sugar dissolving in water.

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What happens during a chemical change?

Back

During a chemical change, substances combine or break apart to form new substances.

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What is rusting of iron an example of?

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Rusting of iron is an example of a chemical change.

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What is an indicator of a chemical change?

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An indicator of a chemical change can include color change, gas production, temperature change, or the formation of a precipitate.

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

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A physical change does not change the chemical composition of a substance, while a chemical change results in the formation of new substances.

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What is baking powder fizzing an example of?

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Baking powder fizzing is an example of a chemical change.

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What is the process of burning wood classified as?

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The process of burning wood is classified as a chemical change.

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What is meant by 'changing a substance into a new substance'?

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Changing a substance into a new substance refers to a chemical change where the original substance is transformed into one or more different substances.