Physical & Chemical Changes.

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Physical vs Chemical.

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Presentation transcript:

Physical & Chemical Changes

Physical Properties: Properties of matter that can be measured or observed without changing what the substance is. Examples: Density, Color, Texture, Melting point, boiling point, Luster, Malleability, Ductility

Physical Changes Physical Change: when an object changes a physical property of matter without any change in chemical properties A change in size, shape, texture, or state. The object still is the same thing.

Examples of Physical Changes Ripped Paper Boiling Water Cutting Hair Broken Brick

Chemical Properties: properties that describe the ability of a substance to undergo a specific chemical change Examples: Reactivity, Flammability, Combustion, Oxidation

Chemical Changes Chemical Change : matter changes into an entirely new substance with different properties …Something new is created.

Keys to Identifying a Chemical Change Color change Temperature change Formation of a gas, bubbles, or odor. Formation of a precipitate.

Examples of Chemical Changes Fireworks exploding An apple rotting Baked cookies