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Classification Worksheet 1. Identify each of the following as a substance or mixture in the first blank. a. soil _______________ _______________ b. iron _______________ _______________ c. milk _______________ _______________ d. glass _______________ _______________ e. table sugar _______________ _______________ f. sulfur _______________ _______________ g. river water _______________ _______________ h. cough syrup _______________ _______________ i. grape juice _______________ _______________ j. nitrogen _______________ _______________ k. baking soda _______________ _______________ l. candle wax _______________ _______________ m. fog _______________ _______________ n. egg _______________ _______________ o. ice _______________ _______________ p. blood _______________ _______________ q. ocean water _______________ _______________ r. calcium _______________ _______________ s. vitamin C _______________ _______________ t. dry ice _______________ _______________ u. after-shave lotion _______________ _______________ v. hamburger _______________ _______________ w. aluminum foil _______________ _______________ x. ethanol _______________ _______________ 2. In the second blank above, classify each item above as an element, compound, solution, suspension, or colloid. 3. Classify each of the following as a chemical or physical property. a. reacts with water _______________ b. is red _______________ c. conducts electricity _______________ d. resists corrosion _______________ e. boils at 88° C _______________ f. dissolves in gasoline ______________ g. ductile _______________ h. flammable _______________ i. 1.5 m long _______________ j. malleable _______________ k. corrosive _______________ l. freezes at -17° C _______________ 4. Classify each of the following as a chemical or physical change. a. evaporation _______________ b. a firefly lighting up ______________ c. battery charging _______________ d. ice melting _______________ e. exploding _______________ f. dissolving _______________ g. digesting food _______________ h. hammering iron into a sheet ________ i. bending wire _______________ j. cooking a steak _______________ k. souring of milk _______________
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