Choose the letter of the correct answer.
1. Science is the study of _________.
A. living things
B. the universe
C. humans
D. nature
2. Does snail has a backbone?
A. Yes, because it is a vertebrate.
B. Yes, because it is an invertebrate.
C. No, because it is a vertebrate.
D. No, because it is an invertebrate.
3. What is mass?
A. It represents the amount of matter in a particle or
object.
B. It is an object that shows how much weight it has.
C. It is the same as weight.
D. It represents how much space it occupies.
4. Muscles work _______.
A. on their own
B. in pairs
C. in threes
D. in fours
5. Merlyn puts a piece of ice on a glass of water. The ice floats.
Why?
A. Because of buoyancy
B. Because of surface tension
C. Because ice is less dense than the water
D. Because ice is denser than the water
6. Which of the following is an example of a producer in an
ecosystem?
A. grass
B. mushroom
C. earthworm
D. air
7. Dinosaurs are commonly grouped under __________.
A. mammals
B. amphibians
C. reptiles
D. primates
8. What is the darkest part of the shadow?
A. umbra
B. penumbra
C. antumbra
D. hyperumbra
9. Jenny put some mothballs in her closet.
After few months, they disappear? What process is involved?
A. Evaporation
B. Condensation
C. Sublimation
D. Liquefaction
10. Jeremy lacks Vitamin E. What condition
will he get later on?
A. Rickett
B. Scurvy
C. Pellagra
D. Anemia
11. What simple machine is used in a
flagpole?
A. wheel and axle
B. pulley
C. inclined plain
D. screw
12. Plants use the energy in sunlight to
convert CO2 and water to sugar and oxygen. This process is called
______.
A. cellular respiration
B. food cycle
C. photosynthesis
D. osmosis
13. A blue litmus paper is dipped in a glass of
liquid. The paper turned red. The liquid in the glass is _____.
A. acidic
B. basic
C. neutral
D. alkaline
14. Which of the following is NOT a fungus?
A. yeast
B. mushroom
C. algae
D. mold
15. It is a relationship in which two
organisms benefit from each other.
A. Parasitism
B. Mutualism
C. Commensalism
D. Commercialism
16. Which of the following is an abiotic
component in an ecosystem?
A. fish
B. fungi
C. air
D. grass
17. Which of the following materials is a
good thermal conductor?
A. styrofoam
B. glass
C. leather
D. metal
18. What happens when the Earth is between
the sun and the moon?
A. solar eclipse
B. lunar eclipse
C. full moon
D. blue moon
19. A glass is filled with water, lemon
juice, sugar, and ice. What is the solute in this concoction?
I. water
II. lemon juice
III. sugar
IV. ice
A. I only
B. III only
C. II and III
D. IV only
20. A bottle of perfume is opened in a room,
the smell of its vapor spreads in the entire room due to _______.
A. diffusion
B. osmosis
C. evaporation
D. condensation
