Mixtures : Sand and rocks, Salad (lettuce, tomatoes, cheese), Chex Mix, Trail mix (nuts, raisins, M&Ms), Cereal in milk, Oil and water, Iron filings and sand, Fruit salad, Solutions: Salt dissolved in water, Sugar dissolved in tea, Lemonade (powder + water), Kool-Aid, Hot chocolate (cocoa powder dissolved in milk or water), Vinegar (water + acetic acid), Coffee (coffee grounds dissolved in water), Soda (carbon dioxide dissolved in water),

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恢復自動保存: ?