Assess What You Have Learned
1. Salt making is based on the idea of
a. crystallization
c. evaporation
b. decantation
d. filtration
2. How can you remove floating oil in water?
a. by decantation
c. by evaporation
b. by filtration
d. by sieving
3. Which of the following techniques is used to separate mixtures with nonvolatile solute
dissolved in a solution?
a. decantation
c. filtration
b. evaporation
d. sieving
4. Which statement is correct about evaporation as a process in fish drying?
a. evaporation adds heat to the fish.
b. evaporation removes the salt in drying fish.
c. evaporation separates the liquid molecules from the fish.
d. evaporation had no connection to fish drying.
5. What is the main role of evaporation as a process in developing a product?
a. evaporation as a process separates the liquid components in the mixture.
b. evaporation as a process absorbs water in the mixture.
c. evaporation as a process adds heat in the mixture.
d. evaporation as a process separates all solid components in the mixture
6. The following are processes of evaporation that are useful in community EXCEPT
a. copra dryin b. fish drying c. salt extraction d. separation of color
7. Mixtures whose solid components settle down in a liquid is called
a. evaporation
b. decantation Se filtration
d. sieving
8. What is an important factor needed in separating mixtures through evaporation?
a light
b.heat
C.wind
d. air
9. The following mixtures can be separated through evaporation EXCPET one.
a. mixture of salt and water
b. mixture of sand and water
c. mixture of sugar and water
d. mixture of dye and water
10. Salt is obtained from
a. freshwater
b. rain water
C. seawater
d. tap water​