Review Physical and CHemical Properties and Changes

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What is a physical property?

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A physical property is something that can be observed about a substance by itself, such as color, odor, melting point, and boiling point.

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What is a chemical property?

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A chemical property describes how a substance can change when it interacts with other substances, such as flammability or reactivity.

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What is a physical change?

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A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition, such as melting or boiling.

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What is a chemical change?

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A chemical change is a change that results in the formation of new chemical substances, such as rusting or burning.

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Is boiling water a physical or chemical change?

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Boiling water is a physical change because it changes from liquid to gas without altering its chemical composition.

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What happens to ice at 0°C?

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At 0°C, ice is a solid and can melt into liquid water if the temperature rises.

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What is an example of a physical change?

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An example of a physical change is honey dissolving in tea.

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What is an example of a chemical change?

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An example of a chemical change is sugar and oxygen reacting to produce water and carbon dioxide.

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What happens during melting?

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During melting, a solid changes into a liquid as it absorbs heat.

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What happens during freezing?

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During freezing, a liquid changes into a solid as it loses heat.