Assessment: Directions: Read and answer each item carefully. Encircle the letter of the correct answer.
1. Which of the following describes a heterogeneous mixture?
a. Clear in appearance. c. Has one observable phase. b. Uniform in appearance. d. Particles can be seen settled at the bottom of a container

. 2. Table salt dissolves in water. How will you describe the resulting mixture? A. has two phases C. homogeneous in appearance B. light cannot pass through D. heterogeneous in appearance

3. Which of the following mixtures can be separated by distillation?
A. alcohol mixed in water C. salt in patis B. flour dissolved in water D. oil in coconut milk

4. You mix soil and water in a jar. After a few days, the soil has settled to the bottom of the jar and the water is at the top. What classification of matter is this? A. compounds C. mixtures B. elements 00 D. pure substance

5. Which of the following is NOT a heterogeneous mixture?
A. Alcohol C. Halo-halo B. Fruit salad D. Ginataan

6. Which property of a substance is similar to that of a solution?
A. fixed boiling point C. sharp melting point B. fixed composition D. being made-up of single phase

7.It is the process of separating coconut pulp (sapal) from coconut milk.
A. crystallization C. filtration B. distillation D. flotation

8. Which of the following is NOT a mixture?
A. halo halo C. pineapple juice B. fruit salad D. pure water

9. If you mix oil and water, how many layers would you observe?
A. OneC. three B. two D. all of the above

10. Which of the following properties identifies a pure substance?
A. soluble in water B. is tasteless and odourless C. has a constant boiling temperature D. can be changed from solid to gas and back to solid A. one​