Physical and Chemical properties and changes.

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Boiling Point

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A physical property that indicates the temperature at which a substance changes from a liquid to a gas.

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Flammable

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A chemical property that describes a substance's ability to catch fire and burn.

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Evaporation of water

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A physical change where water transitions from a liquid state to a gaseous state without changing its chemical composition.

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Hardness

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A physical property that measures a material's resistance to deformation or scratching.

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Explosion of fireworks

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A chemical change that involves a rapid reaction producing gas, heat, and light, resulting in a transformation of substances.

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Chemical Property

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A characteristic of a substance that can only be observed during a chemical reaction, indicating how it interacts with other substances.

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Physical Property

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A characteristic of a substance that can be observed or measured without changing its chemical identity.

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Chemical Change

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A process that involves the transformation of one or more substances into different substances with new chemical properties.

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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.

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Melting Point

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A physical property that indicates the temperature at which a solid becomes a liquid.