Physical Change: reversible, no new substances formed , change in shape, mixing, dissolving , expansion, contraction, changing state, ice-cream melting, methylated spirts evaporating, fog condensing , water freezing, sublimation, scrunching a piece of paper, squashing a can , sugar dissolving, Chemical Change: colour change, substance disappears, gas is produced , solid forms (precipitate), temperature increases or decreases, sound produced, light given off, Hydrochloric acid and magnesium reacts to make bubbles, baking a cake, rusting, paper burning, copper turning green , burning of hydrogen in oxygen causes an explosion, which will make both light and sound, cracking an instant ice pack to make it cold, cooking hard boiled eggs, smell is produced ,
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Chemical or Physical Change: Quiz
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Rupaoberoi
Year 9
Chemistry
Science
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