1. How is coral atoll formed?
a.
volcanic eruptions
b. corals growing around a
volcanic island
c.
underwater bedrock formations
d.
earthquake
2. What causes high and low tides?
a.
earth's rotation on its axis
b.
sun's solar energy
c. moon's gravitational pull
d.
earth's gravitational pull
3. To earth scientists, the most important
features on the map are the landforms that shape the earth's surface that is
shown in:
a.
hydrographic maps
b.
geologic maps
c.
political maps
d. topographic maps
4. It is the phenomena in which energy is
transferred through vibrations.
a.
frequency
b. waves
c.
refraction
d.
amplitude
5. At what temperature does water have the
smallest volume and greatest density?
a.
0 degree C
b.
2 degrees C
c. 4 degrees C
d.
16 degrees C
6. The temperature at which gas would no
longer exert pressure.
a.
Kelvin temperature
b.
Celsius temperature
c. Absolute zero
d.
Boiling point
7. What will make an object move in a
circular path?
a. central force
b.
gravitational force
c.
frictional force
d.
electromagnetic force
8. What is the color of a transparent
substance?
a.
the color of the light it absorbs
b.
the color of the light it reflects
c. the color of the light it
transmits
d.
the color of the light in it
9. LASER is derived from the phrase?
a. Light Amplification by
Stimulated Emission of Radiation
b.
Light Application by Simulated Emission of Radiation
c.
Light Amplification by Simulated Ejection of Radiation
d.
None of the above
10. The term RADAR is derived from the
phrase?
a. Radio Detection and Ranging
b.
Radiation Diffusion and Ranging
c.
Radio Diffraction and Resolution
d.
Radiation Diffraction and Resolution
11. The unit of measurement for intensity
of sound:
a.
hertz
b. decibel
c.
angstrom
d.
frequency
12. The pressure cooker works under the
principle that?
a. boiling point increases as
pressure decreases
b.
boiling point decreases as pressure increases
c.
freezing point increases as pressure increases
d.
freezing point increases as pressure decreases
13. The average temperature was recorded
at 35 degrees C. What is the equivalent in Kelvin?
a. 308
b.
300
c.
273
d.
360
14. When gaseous molecules are compressed,
they tend to?
a. increase in volume
b.
decrease in volume
c.
repel each other
d.
attract and liquefy
15. Describes the force of gravity of an
object.
a.
mass
b. weight
c.
capacity
d.
pressure
16. The process of spreading out
spontaneously to occupy a space uniformly.
a.
compression
b. diffusion
c.
expansion
17. Which property does NOT identify a
chemical system?
a.
melting point
b.
boiling point
c.
taste
d. shape
18. Instrument which measures the specific
gravity of liquids.
a.
hygrometer
b.
synchrometer
c. hydrometer
d.
cyclotron
19. A molecule is said to be polar or
dipolar if?
a.
its positive and negative charges are at different places
b.
it possesses polar bonds
c.
its polar bond have unsymmetrical charge distribution
d. all of the above
20. Which of the following is NOT a
compound?
a.
acetic acid
b.
alcohol
c. magnesium
d.
zinc oxide
21. Coordination and integration of the
body activities of man are under the direct control of the?
a.
reproduction and transport system
b. nervous and endocrine system
c.
nervous and excretory system
d.
respiratory and endocrine system
22. Taxonomy is the study of the
classification of organism based on their?
a.
genetics
b.
evolutionary history
c. development pattern
d.
habitat
23. What relationship exist between a
bangus and tilapia in the fishpond?
a.
commensalism
b.
mutualism
c. competition
d.
predation
24. What will cause the process of
respiration to stop?
a. absence of oxygen
b.
absence of sunlight
c.
decrease in water supply
d.
presence of sunlight
25. Which of the following does NOT occur
to both respiration and fermentation?
a.
energy is released
b.
sugar is broken down
c.
carbon dioxide is produced
d. alcohol is formed
26. These are cellular secretions which
help regulate the breakdown and buildup of various substances in the body.
a.
enzymes
b.
amino acids
c.
plasma
d. hormones
27. Male and female reproductive parts of
a flower:
a.
pollen grains and ovules
b. stamen and pistil
c.
pollen grain and pistil
d.
stamen and ovules
28. The smallest part of a living thing
which performs all the processes a living organism does.
a.
organ
b. cell
c.
tissue
d.
system
29. The development of egg without
fertilization is called:
a.
mitosis
b. parthenogenesis
c.
spermatogenesis
d. mitochondria
30.
In flowering plants, fertilization takes place in the?
a.
pollen tube
b.
stamen
c. ovules
d.
pollen grain
31. What are the 3 products of oxygen when
it has been burned?
a.
water, carbon dioxide and air
b. energy, water and carbon
c.
energy, carbon and oxide
d.
energy, air and water
32. DNA means?
a.
data nurturing analysis
b.
deoxytribonucleic acid
c. deoxyribonucleic acid
d.
deotrixyl nucleic acid
33. The growth of roots towards water is
an example of?
a.
chemotropism
b.
geotropism
c. hydrotropism
d.
phototropism
34. Nitrogen compounds known as the
building blocks of proteins.
a.
enzymes
b.
glucose
c.
nutrients
d. amino acids
35. How does hormones work?
a.
by releasing adrenaline
b. by controlling cell
chemistry
c.
by regulating water loss
d.
by controlling blood pressure
36. Teddy is a seasoned famer updated on
new trends in agriculture. In his effort to make and harvest the best rice
crops, he tried to implement the environmentalist's way of controlling pests as
mandated in the integrated pest management. Teddy later found out that all of
the following processes made best contributions to a good and safe harvest
EXCEPT ________.
a.
use of natural enemies
b.
planting variety of crops
c. use of narrow-spectrum
pesticides
d.
use of genetically engineered crops
37. DDT was used to kill mosquitoes. It
was observed that lizards that ate the mosquitoes slowed down and died.
Eventually, the population of cats that ate lizards diminished. What can be
inferred from this situation?
a.
DDT can cause harm to all organisms.
b.
Using DDT is a reliable way to eliminate insect predators.
c.
The mosquito and other organisms were all competing for same resources.
d. Environmental changes that affect one population can affect other
population.
38. Which is the main cause of the
depletion of the ozone layer?
a.
Decrease in temperature.
b.
Decrease in the amount of air pollutants.
c.
Increase in number of marine ecosystem.
d. Increase in temperature due
to atmospheric pollutants.
39. Which human activity would be more
likely to have a negative impact on the environment?
a.
Investigating the use of the biological controls for the pests.
b.
Using reforestation and cover cropping to control soil erosion.
c. Using insecticides to kill
insects that compete with human for food.
d.
Developing a research aimed toward the preservation of endangered
species.
40. Which of the following can help ensure
a suitable environment for the future generations?
a. Biological controls
b.
Chemical dumps
c.
Fossil fuels
d.
Pesticides
41. What must be done in order to preserve
the biosphere for future generations?
a.
Put all wild animals and game preserves.
b.
Make use of technology to develop.
c.
Explore ways to drain and fill wetlands along the sea coast.
d. Understand how living things
interact with their environment.
42. What is the problem experienced by
astronauts staying for long periods of time aboard the international space
station?
a.
Weight loss due to diet
b.
Reduced exposure to sunlight
c.
Muscle loss due to lack of exercise
d. Effects of lower gravity on
the body
43. Which one is considered as one of the
most important results of the Apollo missions to the moon?
a.
Discovery of subsurface water.
b.
Determination of the age of moon rocks.
c.
First observations of surface features called craters.
d. Proof that craters were
produced by volcanic eruptions.
44. If a lunar eclipse occurs tonight,
when is the soonest that a solar elcipse can occur?
a.
Tomorrow
b. In two weeks
c.
In one month
d.
In one year
45. At which phase of the moon do solar eclipse
occur?
a.
Full moon
b.
First quarter
c. New moon
d.
Third quarter
46. What kind of eclips do we see when the
moon is entirely within Earth's umbral shadow?
a.
total solar
b. total lunar
c.
partial solar
d.
partial lunar
47. Where are most asteroids located?
a.
between Earth and Mars
b.
between Mars and Venus
c. between Mars and Jupiter
d.
between Jupiter and Saturn
48. Which of the following describes an
albedo?
a.
brightness of the star
b.
phase changes of a planet
c.
wobbling motion of a planet
d. amount of light a planet
reflects
49. On which of the following planets
would the sun rise in the west?
a.
Mars
b.
Jupiter
c.
Saturn
d. Venus
50. The universe is estimated to be
between 10 and 20 billion years old. This estimate is based on the value of
which constant?
a.
Speed of light
b. Hubble constant
c.
Mass of the Earth
d.
Mass of the electron