Physical or Chemical Change

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What is a Physical Change?

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A change that affects one or more physical properties of a substance without changing its chemical composition.

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What is a Chemical Change?

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A change that results in the formation of new chemical substances.

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Example of a Physical Change: Crumpling Paper

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Crumpling paper is a physical change because the paper's shape changes, but it remains paper.

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Example of a Chemical Change: Copper Penny Turning Green

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When a copper penny turns green, it undergoes a chemical change due to oxidation.

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Is melting ice cream a Physical or Chemical Change?

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Melting ice cream is a physical change because it changes from solid to liquid but remains ice cream.

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What happens during a Chemical Change?

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During a chemical change, bonds between atoms are broken and new bonds are formed, creating new substances.

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Example of a Chemical Change: Dying Hair

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Dying your hair is a chemical change because the hair's color is altered at a molecular level.

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What is an example of a Physical Change?

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

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What is an example of a Chemical Change?

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An example of a chemical change is burning wood.

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What is the difference between Physical and Chemical Changes?

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Physical changes do not create new substances, while chemical changes do.