Pretest Directions: Read the questions carefully. Encircle the letter of the correct answer and write it also in the answer sheet found in page 9 of this module. 1. Joey opened a water refilling station and assured the people that the water is clean and safe. Which method was applied to ensure the quality of water? A decantation C. filtration B. evaporation D. use of magnet 2. Nica wanted to sleep but her hair was still wet, until she saw the dryer. What do you call So sy G ie t this method of separation that causes Nica's hair to dry up? A. chromatography C. evaporation B. decantation D. filtration 3. Arrange the following procedures to separate a mixture of water, sand, salt and iron filings. 1. Pass a magnet over the mixture to separate iron filings. II. Pass the mixture through a filter paper to collect sand and iron filings, II. Perform a simple distillation process. A. I, II, & II C. II, I & II B. I, III & II D. II, III & I 4. Which shows the application of removing unwanted particles from the mixture? A. extracting salt from sea water C. eating nutritious food B. drinking milk every morning D. purifying drinking water 5. To separate the solid components of a solution, which method will A. chromatography C. evaporation B. decantation D. filtration ی آن you use?​