Physical and Chemical properties and changes.

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Flammable

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Chemical Property: A characteristic of a substance that describes its ability to undergo a chemical change and ignite in the presence of heat or flame.

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Burning Wood

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Chemical Change: A process where wood reacts with oxygen to produce heat, light, ash, and gases, resulting in a change in its chemical composition.

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Changing Color

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Chemical Change: A sign that a chemical reaction has occurred, indicating a change in the substance's chemical structure.

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Odor

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Physical Property: A characteristic of a substance that can be detected by the sense of smell, not involving a change in chemical composition.

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Evaporation of Water

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Physical Change: A process where water changes from liquid to gas without altering its chemical composition.

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Physical Property

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A characteristic of a substance that can be observed or measured without changing its identity, such as color, odor, or boiling point.

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Chemical Property

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A characteristic of a substance that describes its ability to undergo a specific chemical change, such as reactivity with acids or bases.

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Physical Change

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

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Chemical Change

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A change that results in the formation of new chemical substances, indicated by color change, gas production, or temperature change.

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Examples of Physical Properties

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Color, odor, density, melting point, boiling point, and solubility.