SUMMATIVE TEST

1.What kind of mixture is formed when oil is mixed with water?

• A. solution

• B. water

• C. colloids

• D. suspension

2. 2. What kind of mixture when larger particles settle out when left undisturbed?

• A. colloid

• B. suspension

• C. solution

• D. solvent

3. 3. What is the most abundant particle in a colloid?

• A. dispersing mediums

• B. miscible

• C. dispersing phases

• D. immiscible

4. 4. Soda pop,whipped cream,and beaten egg whites are examples of what type of colloids?

• A. foam

• B. Emulsion

• C. Sol

• D. Aerosol

5. 5. What separating technique will you see if you want to separate mongo seeds which mixed up with a salt?

• A. filtering

• B. picking

• C. seiving

• D. magnetism

6.What methods is use to separate solid impurities from water using filter in the faucets?

• A. seiving

• B. magnetism

• C. filtering

• D. distillation

7. 7. In filtering techniques or separating mixtures, what type of material passes through a filter paper or cloth?

• A. liquid

• B. gas

• C. solid

• D. plasma

8. It is the factor that causes evaporation process in separating mixtures.

• A. water

• B. heat

• C. smoke

• D. light

9. 9. It is a process or separating mixtures which involves heating leaving the solid residue in a container.

• A. evaporation

• B. precipitation

• C. distillation

• D. sedimentation

10.Which of the following examples undergo evaporation process?

• A. a pail of water under the heat of the sun

• B. brushing your teeth after meal

• C. ironing clothes every weekend

• D. listening to the radio