Learning Task 1: Choose the letter of the best answer Encircle the correct answer 1 Which of the following mixture can be separated by decantation? A soy sauce and salt C water and oil soy sauce and vinegar 2. 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-ter. C The liquid cannot pass in a filter. D. All of the above 3. The insoluble substance from a liquid mixture was separated whereby a liquid pass through the holes in a filter paper. The solid particles are left behind. What method of separating mixture is used? A decantation B filtration C. evaporation D. using magnet 4. To separate rocks into different sized particles for road building and other construction projects which technique is applicable? A condensation B. sieving C. evaporation D. using magnet 5. A method of separating excess liquid from food by heating A decantation B. filtration C. evaporation D. using magnet 6. Which of these is NOT a technique in separating a mixture? A decantation B. filtration C. dissolving D. Filtration 7. What is the process by which water is separated by heating? A decantation B. filtration C. evaporation D. sieving 8. What is the best technique in separating mixture of metals from other junk? A. aided by magnets B. filtration C. evaporation D. Sieving 9. What are the practical applications of the knowledge on evaporation as a technique to separate the components of mixture? A. Drying of clothes, ironing, boiling of water B. Taking care of pets, segregating wastes, planting seeds C Fixing broken table, cleaning windows, sweeping the floor D. Fixing tangled threads, using food container, wrapping boxes 10. Which of the following statements is correct practice? A. Handpicking plastic bottles for recycling B. Scooping food without using serving spoon C. Playing with plastic toys that float using big basin D. Handpicking the food using the bare hand while eating.). 1-10
