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6th Grade Science Reviewer Part 3 MATTER

 

6th Grade Science Reviewer         Part 3        MATTER

Direction: Choose the letter with the best answer. Write your answer on your answer sheet.

 

1. Which among the following is NOT the characteristic of heterogeneous mixtures?

  1. components can easily be distinguished
  2. components have no visible boundaries *
  3. components have visible boundaries
  4. no uniform composition

2. It is another form of mixture where its dispersed particles do not settle at the bottom of the container

    because they are light enough to stay dispersed in the dispersal medium.

  1. uniformed mixture
  2. solute
  3. colloid *
  4. solution

3. It is a heterogeneous mixture in which solute particles of the dispersed ingredients are not really dissolved in the liquid but settle later on at the bottom of the container.

  1. uniformed mixture
  2. solution
  3. colloid
  4. suspension *

4. Which of the following is an example of colloid?

  1. oil
  2. blood
  3. whipped cream *
  4. coffee drink

5. Which of the following is an example of suspension?

  1. gelatin
  2. blood *
  3. butter
  4. mayonnaise

6. What is the difference between a suspension and a colloid?

  1. Suspensions may either be solid, liquid, or gas, while colloids are liquid.
  2. Suspensions are homogeneous while colloids are heterogeneous.
  3. Suspensions lose their consistency while colloids remain consistent. *
  4. Suspensions are for medicines while colloids are for food.

7. Which colloid has both decorative and protective function?

  1. ink
  2. paint *
  3. mud
  4. mayonnaise

8. What is an emulsion?

  1. It is a universal solvent.
  2. It is a mixture of a solute and a solvent.
  3. It is a suspension of liquid particles in a gas.
  4. It is a mixture of two or more liquids that are normally unmixable. *

9. Which mixture cannot be separated by picking?

  1. pins and nails
  2. corn and mongo seeds
  3. cream and milk *
  4. coins and marbles

10. Which mixture can be separated by picking?

  1. oil and water
  2. nails and coins *
  3. cream and milk
  4. coffee and water


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