Chemical Changes: affecting the form of a chemical substance, of a chemical change, An odor is produced, , The substance changes color, 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, Heating sugar to form caramel, Baking a cake, the change is extremely difficult, burning wood, 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 pece 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,
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Physical and Chemical Changes
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U88877447
Elementary
Science
Properties of matter
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