Chemical Changes: a new substance is formed with new properties, An odor is produced, There is a temperature change, Light is produced when chemicals react, A precipitate (solid) forms when 2 liquids are mixed, Souring milk, Digesting food in your stomach, Cooking an egg, Baking a cake, the change is extremely difficult to reverse, burning wood, bubbles form in a liquid, the outside of a beaker warms up when two liquids are mixed, Physical Changes: when a substance combines with another to form a new substance, paint is spread out over a wall, a paper clip is straightened out, The change is possible to reverse., ripping a piece of paper in half, cracking an egg shell, a piece of metal can be flattened, a piece of metal can be rolled and stretched in a wire, a change of state is happening, water evaporates, ice melts, condensation appears on the outside of a really cold can of pop, a solid dissolves in a liquid,
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Physical and Chemical Changes
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by
Angieangle
Elementary
Chemistry
Properties of matter
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