Learning Task 9: Choose the letter of the best answer. Write the cho- sen letter on a separate sheet of paper.

1. The insoluble substance from a liquid mixture was separated whereby a liquid passes through the holes in a filter paper. The solid particles are left behind. What method of separating mixture is used?
A decantation C. filtration
B. evaporation D. using magnet

2. A method of separating excess liquid from food by heating.
A. decantation C. filtration
B. evaporation D. using magnet

3. Which of the following mixture can be separated by decantation?
A. soy sauce and salt C. water and oil
B. soy sauce and vinegar D. water and
flour

4. To separate rocks into different sized particles for road building and other construction projects, which technique is applicable?
A. condensation C. sieving
B. evaporation D. using magnet

5. Which of these is NOT a technique in separating a mixture?
A. decantation C. filtration
B. dissolving D. Filtration

6. Which of the following statement is correct about separating mixture through a filter?
A. The liquid passes through sieve but
the solid particles are left behind.
B. Insoluble substances from a liquid can
be separated by using a fil- tcr
C. The liquid cannot passed in a filter.
D. All of the above

7. What is the process by which water is separated by heating?
A. decantation C. filtration
B. evaporation D. sieving

8. What is the best technique in separating mixture of metals from other junk?
A. aided by magnets C. filtration
B. evaporation D. Sieving

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