Ways of Separating Mixtures

1. Materials made of iron mixed with other materials in a mixture can be separated using this method. What is it?

• A. sieving

• B. sedimentation

• C. magnetism

• D. filtration

2. Which process is essential in purifying water?

• A. decantation

• B. distillation

• C. filtration

• D. evaporation

Immiscible liquids like oil and water can be separated by pouring or scooping out the topmost liquid. This process is called _______.

• A. distillation

• B. evaporation

• C. filtration

• D. decantation

4. Evaporation is used to _______.

• A. obtain the solute from the solution

• B. separate solids of different particle size

• C. separate the dyes in a marker

• D. separate liquids of different boiling points

5. Which mixtures CANNOT be separated through picking?

• A. grains and mongo seeds

• B. sliced fruits

• C. oil and vinegar

• D. nails and pins

6. This process involves separating solid particles from a liquid substance using a piece of cloth.

• A. decantation

• B. filtration

• C. evaporation

• D. using a magnet

7. To separate rocks into different sized particles for road building and other construction projects, which method is applicable?

• A. sieving

• B. winnowing

• C. picking

• D. threshing

8. What is winnowing?

• A. It is the process of freeing (grain) from the lighter particles of chaff, dirt, etc.

• B. Is used to separate smaller solid particles from larger solid particles.

• C. Picking of small particles to larger

• D. Both B and C

9. Kidneys clean our blood through which process?

• A. distillation

• B. evaporation

• C. . decantation

• D. filtration

10. What is the process by which water changes from a liquid to gas or vapor?

• A. filtration

• B. evaporation

• C. mixture

• D. decantation