SCIENCE 6 1. Multiple Choice. Choose the letter of the best answer. Writte the chosen letter on a separate sheet of paper. 1. Which of the following is a colloida A. oil and water B. salt and water C. sand and water D. alcohol and water 2. Pond water appears clear on standing. Thus, pond water is A. a colloid B. a solution C. an emulsion D. a suspension 3. A metal alloy belongs to what type of colloid? A. sol B. gel C foam D. emulsion ona 4. When egg yolk is added to oil and water with vinegar to make mayonnaise, the egg yolk serves as: A. solvent B. coagulant C. surfactant D. emulsifying agent 5. Which of the following colloids is considered harmful? A. cheese B. hair spray C. whipped cream D. black diamond 6. If a drink container tells you to "SHAKE WELL" before drinking, the mixture in the container is most likely a: A. A solution B. A suspension C. A colloid D. alloy 7. Which is NOT an emulsion? A. milk B. mayonnaise C. shaving cream D. crude petroleum 8. Milk is an example of. A. solution B. solvent C. suspension D. colloid 9. It is a mixture where solid particles do not dissolved in a liquid substance but only settled at the bottom.


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