Direction: Write the letter of the correct answer. Do it in your Science journal
or notebook.
1. What method is used to obtain salt from sea water?
a. decantation c. evaporation
b. sedimentation d. filtering
2. 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
3. It is the main factor that causes evaporation process in separating
mixtures.
a. water c. smoke
b. heat d. light
4. Princess accidentally spill a glass of water in the salt container and she is
thinking with of a solution on how she’s going to recover salt from water.
What will Princess do to return the salt to its original phase?
a. She will wrap it with newspaper tightly
b. She will throw it away in the waste can
c. She will hide it in a dark corner
d. She will boil the solution
5. While boiling water in a kettle, Gwayne noticed that there are smoke
coming from the spout of a kettle. He asked his mother, “Why did the
smoke rise upward”? What do you think will be the mother’s answer?
a. because the water reached its cooling point
b. because the water reached its boiling point
c. because the water is heated and became water vapor
d. because the water is freezing

Write E if the following conditions undergo the evaporation technique of
separating mixtures and N if not.
6. water in the canal becomes less after the rain - ___________
7. doormat on the floor - ___________
8. wet hair becomes dry - ___________
9. chair on the ground - ___________
10. cooling after sweating - ___________