MULTIPLE CHOICE
Instructions: Read and answer the question below. Encircle the letter of the correct answer.

1. When you were able to observe the sweet smell of ripe fruit from dining table, you are aware that a process has occurred. What do you call this natural process?
a. Absorption
b. Assimilation
c. Diffusion
d. Digestion

2. Molecules constantly move from one place to place. In which of the following is the movement of the molecules fastest?
The molecules of _________
a. gases
b. liquids
c. solids
d. none of the above

3. A mixture that has the same appearance and composition throughout?
a. Colloidal
b. Heterogeneous
c. Homogenous
d. Tonic

4. At the right is a diagram of a molecule of water as seen under the electron microscope. What makes up a molecule of water?

a. An atom of hydrogen and three atoms
oxygen.
b. An atom of oxygen and two atoms of hydrogen
c. An atom of hydrogen and three atoms
oxygen.
d. Three atoms of hydrogen and two atoms of oxygen.

5. Which of the following is an example of a heterogeneous mixture?
a. Halo - halo
b. Metal alloy
c. Sea water
d. Vinegar

6. Which of the following shows physical
change?
A. Boiling an egg
B. Burning of wood
C. Boiling of water
D. All of the above

7. Mixing 20 grams of sugar and 50 ml of water results a volume of less than 70 ml. What explains this result?

8. In the three phases of matter, which has the strongest force of attraction?

9. When liquid turns into solid, which of following occurs?

10. Which of the following is not a mixture?


Ans:
1. C
2. A
3. C
4. B
5. A
6. B
7. C
8. D
9. C
10. A