4-let - general education - science 82-109

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LET Comprehensive Reviewer Based on NCBTS and Table of Specifications (TOS)

PRACTICE TEST: Test your mastery of the competencies. Choose the letter that corresponds to the best

answer.

Read the text below then answer items 1 3.

1. Which trait of a scientist does Student A seem NOT have? A. Open-mindedness C. Blind obedience

B. Truthfulness D. Ojectivity

2. Student B and C display which trait of a scientist? A. Odjectivity C. Truthfulness

B. Authoritativeness D. Critical attitude

3. Why can Student D be said to have the bearing of a scientist. A. He/She can relate to people. C. He/She has a critical mind.

B. He/She is objective. D. He/She is open-minded.

4. Marco is always interested in asking questions. He is also very eager to find the answers to his questions. What scientific attitude is he displaying?

A. Curiosity C. Absence of prejudice

B. Rationality D. Wonder

SCIENCE 20%

COMPETENCIES:

BIOLOGICAL SCIENCE (GENERAL BOILOGY)

PHYSICAL SCIENCE (EARTH SCIENCE)

1. Identify scientific traits and attitudes exhibited in varius situation 3%

2. Use scientific inquiry to investigate materials, events and

phenomena in the natutal world (designing experiments,

collecting, organizing, analizing and interpreting data, making 5%

conclusions and communicating results)

3. Use scientific knowledge to explain natural phenomena and

protect earths resources 5% 4. Analyze advantages and disadvantages of different solutions to 4%

particular problems

5. Analyze the impact of technology on living and non living things 3%

1. Identify scientific traits and attitudes exhibited in various situations

The students were arguing about the results of their experiment.following were their commnts:

Student A : Our conclusion is wrong. It is the opposite of what we learned in the lecture.

Students B and C: Thats what came out. After we designed the experiment and observed for two weeks we should not change the result.

Student D: Maybe, its good to find out why our findings differ from what was given in the lecture. Why not repeat the same experiment?

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GENERAL EDUCATION SCIENCE

5. Monica respects the ideas of her colleagues even if they are very much contrary to her own beliefs.

What important scientific altitude is seen in her actions?

A. Honesty C. Open-mindedness

B. Absence of prejudice D. Acceptance

6. Carlito weighs evidences dutifully before making any conclusions or decisions. He dissects the information individually before coming to a final conclusion. What scientific attitude is he

displaying?

A. Carefulness C. Precision

B. Rationality D. Accuracy

7. While performing an experiment, Mico expresses his opinions and tries new ideas even at the risk of failure or criticism. What scientific trait is displayed in this situation?

A. Curiosity C. Diligence

B. Risk-taking D. Absence of ambiguity

8. Paul admits that he is not free from committing errors. He recognizes that there may be better ideas and reliazes that there are individuals whom he may have to consult to arrive at correct observations

and conclusions. What scientific trait is he displaying?

A. Open-mindedness C. Rationality

B. Objectivity D. Humility

9. While performing research for a pharmaceutical company, Melanie gave a truthful report of observations. She did not withhold important information just to please herself or her company.

What scientific attitude did she display?

A. Absence of bias C. Intellectual honesty

B. Faith in God D. Critical mindness

10. Chona actively participates in a task and also dutifully performs tasks assigned to her. What scientific attitude is displayed in this situation?

A. Camaraderie C. Being a team playe

B. Responsibility D. Unity

11. Fernan always seeks to think outside the box. He always aims to generate new and original ideas. What scientific attitude is he displaying?

A. Inventiveness C. Indiffernce

B. Nobility D. Absence of prejudice

12. Adolfo does not allow his fellings and biases of influence his recording, of observations,

interpretation of data, and formulation of conclusions.What scientific attitudes reflected in his

action?

A. Absence of bias C. Rationality

B. Concern for the environment D.Objectivity

13. Dennis bases suggestions and conclusions on evidences. When in doubt, he questions the veracity of

a statement in relation to the evidences presented. What scientific attitude is seen in his actions?

A. firm set of beliefs C.Critical-mindedness

B. Absence of bias D. Intellectual honesty

14. Jose believes that everything that happens in this world has cause or reason. What scientific attitude

is seen in his actions?

A. Curiosity C. Honesty

B. Firm set of beliefs D. Critical mindedness

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15. Pepita believes that God is the ultimate source of all scientific wisdom. She also upholds that it is

through Gods grace the she is able to discover the mysteries of Gods creations. What scientific

attitude is seen in his actions?

A. Faith in god C. Honesty

B. Fatalisim D. Concern

16. Alice does not allow her judgment to be influence by her likes or dislikes. What scientific attitude is

seen in her actions?

A. Prejudice C. Honesty

B Crritical thinking D. Absence of bias

17. Miguel only creates inventions that respect and help conserve natural resources. He is advocate

against pollution and illegal logging. What scientific attitude is seen in his actions?

A. Concern for the invironment C. Belief in evolution

B. Love of nature D. Conservatism

18. Nicaulus Copernicus Believed That the church was wrong about the Sun revolving around the Earth.

Advancing his theory that the Earth revolved around the Sun eventually cost him his life. What

scientific attitude is seen in his actions?

A. Egotism C. Revolutionary

B. Selflessness D. Positivism

19. If two variables X and Y are directly related, which of these is NOT true? A. As X increases, Y also increases.

B. A high Y is associated with a high X.

C. When X increases, Y increases.

D. When X is low, Y also is low.

Situation: Read the following then answer questions # 20-22.

20. To be a fair test, what variables should she control?

I. Size of each block

II Time left in water

III. Type of wood

IV. Amount of water

A. I and III C. I and II

B. III and IV D. II and IV

21. In this experiment, what is the dependent variable? A. Type of wood used C. Time left in water

2. Use scienticfic inquiry to investigate materials

Beda wants to find out if different types of wood soak up the same amount of water when wet. She

plans to do the following:

I. Weigh a dry block each type of wood. II. Put each block into a container full of water.

III. Leave the wood in the water.

IV. Take the wood out, dry the outside of each block and reweigh.

V. Calculate the amount of water soaked up.

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B. The amount of water soaked up D. Dry weigh of each block

22. What is the independent variable? A. Type of wood used C. Amount of water soaked up

B. Dry weigh of each block D. Time left in water

Read the following, then answer questions # 23-27.

23. What is the control group?

A. The tilapia with 1 tbsp of Tide

B. The baby janitor fish with 1 tsbp of champion

C. The goldfish with 1 tbsp os surf

D Cannot be determined

24. What is the experimental group?

A. Cannot be determined

B. The baby janitor fish with 1 tsbp of champion

C. The goldfish with 1 tbsp os surf

D. The tilapia with 1 tbsp of Tide

25. What is the dependent variable?

A. The brand of detergent

B. The effect of detergent on fish

C. The amount of detergent

D. The amount of water

26. Is there any defect of the experimental design?

A. None, it is a simple yet perfect design.

B. Yes, not only one but several.

C. Yes, there is, but was remedied by the fact that 3 kinds of detergent were used.

D. Yes, there is but was compensated by the use of not ony one type of fish but 3.

27. If you were to improve the experimental design what should you do?

I. Just focus on one independent variable at a time, e.g. brand of detergent

II. Make use of the same type of fish.

III. Increase the number of fish and reduce the number of detergent brand involved.

A. I and II C. I and III

B. II only D. I only

28. Printed on the label of the bottle of cough medicine is the following instructions: Store away from

light, below 30 degrees C. What can you infer about the cough medicine?

A. It should be hidden away from children.

B. It should be stored at the refrigerator.

C. It is in the dark, light-proof bottle.

D. It is affected by heat and light.

The class was asked to design an experiment to test the effect of detergent on fish. One group came up

with this experimental design.

For detergent they got Tide, Surf, and Champion.

For fish, Tilapia, Fingerling, goldfish and baby janitor fish contained in different sizes and shapes of

battles. To the tilapia fingerling, they put 1 tbsp of Tide. To the goldfish, they put 1 tbsp of surf and to

the baby janitor fish, 1 tsbp of champion.

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29. It is commonly observed that the most respondents to survey questionnaire checklists just check

answers without really reading them. What conclusion can be derived from the common

observation?

A. Data gathered by way of questionnaire checklists are not very reliable.

B. Respondents need to be convinced of the importance of tre research data.

C. Researchers resort to questionnaire checklists for data-gathering because it is the easiest

method.

D. Good survey questionnaires are not easy to make.

30.

What was teacher M engaging to do?

A. Formulate hypothesis C. Design an experiment

B. Draw conclusion D. Observe

31. The existence of extraterrestal life may never be proben, but this idea will become more

scientifically acceptable over time if_____________.

A. hyphotheses are made related to the idea

B. no one disputes this idea in a scientific forum

C. alternative hyphotheses are proposed and confirmed

D. increasing scientific evidence supportd the idea

32. Which comes ahead in the scientific method-observation or defining the problem?

A. Observation so that you can come up with a scientific problem.

B. Defining a problem so that your observation becomes focused.

C. No defined answer. What you observe makes you think of a problem and a problem

makes you observe.

D. They happen at the same time. Both are steps of the scientific method.

33. You like to know how many of your pupils have mothers and/ mothers who are presently employed

as OCWs. What is/are the most rialable way to gather data?

I. Intrview the pupils.

II. Give questionnaire checklist to selected pupils.

III. Study the grades of the pupils because those performing poorly usually have parents who

work as OCWs.

A. I only C. II only

B. I and II D. I, II and III

34. Which of the following has the smallest mass when measured in an equal arm balance?

A. 1/8 sheet of pad paper C. 1/4 sheet of pad paper

B. 1/3 sheet of pad paper D. 1/2 sheet of pad paper

35. In computing data, Student F computes up to the second decimal place. As a researcher or scientist,

what trait/s do/es Student F posses?

I. Accuracy III. Objectivity

II. Critical-mindedness IV. Truthfulness

A. I and IV C. I and II

B. II and III D. III and IV

Teacher M showed the class the pottd plants placed on the window sill. She asked them to

observe the direction of their growth. The pupils observed that the plants tended to grow

outward. Then teacher asked the class this question: Why do you think they tended to grow

outward?

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36. Which does not belong?

A. Conclusion C. Hyphothesis

B. Surmise D. Conjecture

For numbers 37 41, refer to the scientific case described below. Choose the best answer to the

questions that follow.

37. Which among the following statements is the best problem statement in Nancys expirement?

A. Is virgin coconut oil useful as a preservative for peanuts?

B. How many peanuts can be preserved using virgin coconut oil?

C. How long can virgin coconut oil act as a preservstive?

38. Which among the following is NOT a controlled variable in this experiment?

A. Number of peanuts C. Amount of virgin coconut oil

B. Type of glass used D. Two week observation period

39. Which among the following is an observation that may be derived from this experiment?

I. Only four peanuts dried up in the glass without virgin coconut oil because of room temperature.

II. Six peanut did not dry up in the glass with virgin coconut oil.

III. The duration of two weeks for this experiment is too long.

IV. Peanuts did not wither in virgin coconut oil beause of the presence of stearic acid.

A. I only C. II and IV

B. I and II D. IV

40. How many manipulated variables are present in this experiment?

A. one C. Three

B. Two D. Four

41. What is suitable null hypothesis for this experiment?

A. If virgin coconut oil is used, peanuts will be well-preserved.

B. Virgin coconut oil is equally effective as commercial nuts preservatives.

C. The threshold for preservatives effect is 10peanuts only.

D. Virgin coconut oil Has no significant preservative effect on peanuts.

42. During periods of increased global temperaturs, which of the following is likely to occur? A. An increase in atmospheric CO2

B. A decrease in atmospheric CO2

C. A decrease in in earthquakes

D. A increase in in earthquakes

Nancy wanted to find out if virgin coconut oil can be used as a preservative for peanuts. She

placed 10 peanuts each in 2 glasses. In one glass, she added enough virgin coconut oil to cover the

peanuts completely. She did not put any liquid on the other glass. She then kept the two glasses on a

shelf and observed them for two weeks.

3. Use scientific knowledge to explain natural phenomena and protects earths recources

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43. Why is the Philippines much hotter than Canada? The Philippines ________. A. receives sun rays closer to vertical position

B. has more vegetation to absorb sunlight

C. has days with more hours of light

D. has a denser population than Canada

44. Geothermal energy, an energy resource in the country, is based on what phenomenon?

A. Earths internal energy heats its surface more than the sun does.

B. There are concentrations of heat in some places of Earths crust.

C. Heat energy from the sun penetrates deep into the earth.

D. human activity is the largest source energy on earth.

45. Which of these effects generally occurs as a result of warm air mass and a cooler air mass

converging at earths surface?

A. Stormy weather patterns develop. C. Winds die down

B. The sky becomes clear D. Cloud formation decreases

46. Why do fisherfolks catch more fish during the new moon than during the full moon?

A. Fishes are more active during the new moon because the salt content of water is just right.

B. Fished look for mates during the new moon.

C. Fishes go near the surface during the new moon because the water is warmer.

D. Fishes attached to the light from the fishing boat which fisherman makes use of during

the new moon.

47. Bagoong smells because ______________.

A.air and volatile particles from bagoong mix and get spoiled further

B. that is the natural scent of bagoong

C.molecules from bagoong spread in air

D.it uses spoiled fish ingredients

48. Every morning when the sun shines through the glass jalousie of Marias window, she sees a

rainbow on her wall. Which could explain this?

A.The glass jalousies break up the beam of sunlight into the colors of the rainbow.

B. The glass jalousies cast colored shadows.

C. In the morning, sunlight shines on the wall painted with rainbow colors.

D. There are water droplets on the glass that act like a prism

49. Which of the following is TRUE about light and seeing?

A. light hits an object, bounces, and then enters the eyes.

B.Light goes out from eyes, hits an object, and then returns to the eyes.

C. Light rays coming from an object meets light coming from a light source, and then enters

the eyes.

D. Light enters the eyes enabling people to see objects.

50. Why do leaves with green color look green in the sunlight?

A. The blue and yellow bounces off from the leaves.

B. They absorb the blue and yellow object and yellow light.

C. They absorb the green light.

D. they reflect green light.

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51. Why does the level of water in a beaker rise after a stone is placed in it?

A. The stone takes the place occupied by water.

B.The stone has more mass than water.

C. The water weighs less than the stone.

52. Why do people feel their ears pop or crack when they are up in the air?

A. There are less air particles. C. Air is cooler.

B. There are more air particles. D. Air is cleaner.

53. Which of the following activities help reduce water pollution?

A. Cleaning of soap instead of detergent.

B. Treating wastewater before it is discharged.

C. Throwing only liquid wastes.

D. Using organic fertilizers in farms.

54. The manager of textile factory considers it too expensive to treat liquid wastes so he suggested

digging a hole near the factory where the wastes can be stored is this environmentally safe?

A. No, the liquid can be recycled.

B. No, the liquid wastes will seep to the groundwater.

C. Yes, the liquid will pass to the layers of soil and becomes clean.

D. Yes, the liquid can be recycled.

55. Why are nights cooler when the sky is clear than when it is overcast?

A. Rain falls when water vapor condenses above freezing point.

B. Cooler air holds less vapor.

C. The sun is hidden during the night.

D. There is no cloud cover to prevent heat from escaping.

56. Water covers about 75% of the Earths surface and yet some people still do not have enough water

to drink. Why?

I.Most of worlds water is salty.

II. Most of our bodies of water are polluted by chemicals.

III. Most freshwater are frozen in ice caps.

A. I and II C. II and III

B. I, II and III D. I and II

57. Children born with a deficiency of thyroxin _________ if deficiency is not checked.

A. lose their hair C. grow too rapidly

B. have weak bones D.become mentally retarded

58. The correct way of eating fruits is when eaten ____________.

A. with an empty stomach C. before sleeping at night

B. after meals D. during snacks

59. An eclipse of the sun throws the shadow of the _______.

A. moon on the earth C. earth on the sun

B. moon on the sun D. earth on the moon

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60. The following are effects of global warming EXCEPT ___________.

A. thinning of the ozone layer

B. extreme weather events

C. changes in the aiming of seasonal patterns in ecosystem

D. expansion of tropical diseases.

61. John experienced a lack of growth hormone (GH) as a child. Now that John is an adult, it is likely

that he _________.

A. has cognitive and emotional problems as a result of his hormone deficiency

B. has normal adult body proportions, but an extremely short stature

C. is of normal height, but has child-like body proportions

D. has develop a physique similar to that typically seen in females

62. Which among the following represents the smallest unit of life?

A. Embryo C. Cell

B. Organelle D. Atom

63. Which of the following statements about living things is FALSE?

A. All living things use energy to function.

B. All living things are composed of cells.

C. All living things have a nervous system.

D. All living things are capable of reproduction.

64. Which of the following best describes a group of cells that work together to perform a function?

A. Tissue C. Organ

B. Organ system D. Organism

65. Which among the following are duplicated during the process of mitosis?

A. Centromeres C. Chloroplasts

B. Chromosomes D. Centrosomes

66. Plants create their own food by absorbing and processing sunlight. The ability to produce ones own

food source is a metabolic process known as ___________.

A. Heterotrophy C. Homotrophy

B. Autotrophy D. Ditrophy

67. Fungi absorb the nutrients from dead organisms. In an ecosystem what roles do they play?

A. Producers C. Saprophytes

B. Carnivore D. Epiphytes

68. Which among the following cell organelles does NOT participate in cellular division?

A. Ribosomes C. Mitotic spindle

B. Chromosomes D. Cytoplasm

69. Which of the following is an example of a symbiotic relationship?

A. Wolves working together to hunt in a pack

B. Plants growing in the same rolling meadow

C. Humans and their pets living in the same home

D. Weeds clinging to the roots of trees in your backyard

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70. Which of the following is NOT an example of a naturall-occurring sugar?

A. Sucrose C. Glucose

B. Mitose D. Galactose

71. Which of the following is a proper example of natural selection?

A. Human beings continue to get taller because of thousands of years of proper nutrition.

B. A community of lady bugs begins having offspring with darker shells, in order to hide

from their predators.

C. Albino rodents die off quickly in a community, being more vulnerable to certain

pancreatic diseases.

D. Seagulls begin to eat so many fish so that only those with dark blue scale color survive.

72. What is the main difference between prokaryotes and the eukaryotes?

A. The eukaryote has a nucleus, but the prokaryote does not have.

B. The prokaryote has a nucleus, but the eukaryote does not have.

C. The eukaryote is always larger than the prokaryote.

D. The eukaryote is the only type of cell than is capable of photosynthesis.

73. Which of the following statements is TRUE about parasites and their relationships with their hosts?

A. The parasite and the host enjoy a mutual relationship, where both organisms benefit.

B. The parasite enjoys the benefits of a relationship in which the host is harmed or killed.

C. The host enjoys the benefits of a relationship in which the parasite is harmed or killed.

D. Neither the parasites nor host is really harmed in their symbiotic relationship.

74. Vascular tissue that transports water and leaves connects directly to which of the following?

A. Meristems in the root tip C. Root hairs in the epidermis

B. Pistils in the flower D. Xylem in the stem

75. One immediate cause of a decrease in the rate of photosynthesis is the reduction in the availability of

which of the following substances?

A. Carbon Dioxide C. Hydrogen

B. Carbon monoxide D. Oxygen

76. Which type of digestion occurs in the mouth when an individual chews a piece of bread?

A. Mechanical digestion only

B. Chemical digestion only

C. Both mechanical chemical digestion

D. Neither mechanical nor chemical digestion

77. Which among the following gases is green in color?

A. krypton C. Radon

B. Neon D. chlorine

78. What does a pH below 7 indicate?

A. Presence of ions C. Alkalinity

B. Purity of the sample D. Acidity

79. Which of the following best describe the amount of energy required to remove an electron from a

gaseous atom?

A. Activation energy C. Ionization energy

B. Free energy D. Lattice energy

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80. Which of the following has the most pollar bond?

A. N2 C. F2

B. HF d. HCI

81. A molecule or an ion is classified as a lewis base if it has of the following properties?

A. Donates a proton to water C. Has a resonance structure

B. Accepts a pair of electrons D. Accepts a proton from water

82. Which among the following elements can be drawn into thin wires and hammered intop thin sheets?

A. Ag C. Cu

B. Na D. Sn

83. Alchemists in ancient Egypt tested gold for purity by remelting it and heating it. if the gold became

whiter, it contained ___________.

A. copper C. silver

B. lead D. tin

84. Salts of water of the following metals are added to fireworks to make them brilliant red?

A. Copper C. Potassium

B. Barium D. Strontium

85. What inter molecular forces do geckos and other lizards use to stick to walls and ceilings?

A. Van der waals forces C. Hydrogen bonding

B. Static ionic attractions D. dipole-dipole attractions

86. If no more solute can be dissolve in a solvent at a given temperature, then that solution is called

________.

A. saturated C. saturable

B. unstable d. dispersed

87. A horizontal row of elements on the periodic table is known as a(n) ________.

A. group or family C. size

B. atomic number D. period or series

88. According to the modern periodic law, the chemical property of the elements are periodic functions

of their ___________?

A. atomic weight C. atomic number

B. isotopic weight D. atomic mass

89. The amount of substance having 6.02 x 1023 of any kind of chemical unit is called a(n) _____.

A. mass number C. formula

B. mole D. atomic weight

90. Breaking up solid speeds dissolving in a liquid by _________.

A. raising the temperature C. increasing surface area

B. decreasing the pressure D. slowing hydration

91. Fats do not dissolve in water because fats ___________.

A. are polar and wateris nonpolar C. are nonpolar and water is polar

B. and water are both nonpolar D. and water are both polar

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92. What is the location on the Earths surface that is directly above the place where an earthquakes

originates?

A. focus C. Hypocenter

B. Epicenter D. Fault

93. If there are several earthquakes in a row, what is the name of these earthquakes?

A. Tertiary shock C. Mainshock

B. Foreshock D. Aftershock

94. What is the partially molten layer of the earth called?

A. Asthenosphere C. Hydrosphere

B. Biosphere D. Lithosphere

95. What part of earth is thought to be composed of iron and nickel?

A. Hydrosphere C. Lithosphere

B. Asthenosphere D. Core

96. What is the numerical value for the hardest mineral on the Mohs hardness scale?

A. 10 C. 20

B. 11 D. 100

97. Which among the following properties is a measure of how easily a mineral can be scratched?

A. Streak C. Luster

B. Specific gravity D. Hardness

98. Rock fragments thrown into the air during a volcanic eruption are called ________.

A. Tephra C. Granite

B. Extrusive D. Lava

99. What is a pyroclastic flow?

A. When lava comes out of the volcanic vent

B. A mixture of volcanic gas, ash, and other tephra

C. Poisonous gas of a volcano

D. Lava that is harden into a batholiths

100. What type of clouds produce thunderstorm?

A. Cirrus C. Cumulus

B. cumulonimbus D. Stratus

101. What is an example of natural air pollution?

A. Smoke from forest fires

B. Carbon monoxide from engine exhaust

C. Dust from desertification

D. Acid precipitation

102. How is oxygen released into the Earths atmosphere?

A. Burning forests C. Burning fossil fuels

B. Photosynthetic plants D. Volcanic eruptions

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103. Which is TRUE of the earth throughout geologic time?

A. Always colder than the present C. Only warmer than the present

B. Warmer and colder than the present D. A steady temperature

104. Where are most asteroids located?

A. Orbiting all planets C. Between Earth and Venus

B. Outside of plotus orbit D. Between Mars and Jupiter

105. Before metamorphism, marble was what type of rock?

A. Schist C. Silstone

B. Rock salt D. Limestone

106. What type of lens is a magnifying glass?

A. Convex C. Plane-concave

B. Concave D. Plane glass

107. What is the name of the point where light rays from infinity converge after passing through a

lens?

A. Parabola C. Focus

B. Center D. Infinity

108. Which of the following is NOT a good heat insulator?

A. Wood C. Feathers

B. Wool D. Iron

109. Bending of light rays when they enter a different medium is known as ________.

A. reflection C. convection

B. refraction D. radiation

110. When a spring is released, its potential energy is converted to ________ energy.

A. magnetic C. light

B. mlectrical D. kinetic

111. A car is travelling in a circle with a constant speed. Which statement is TRUE?

A. The car has a constant velocity but changing acceleration.

B. The car has a changing velocity but constant acceleration.

C. The car has a changing velocity but changingacceleration.

D. The car has a constant velocity but constant acceleration.

112. A rock is dropped out of the window of a moving car. At the same time a ball is dropped

from rest from the same height. Neglecting air resistance, which will reach the ground first?

A. Rock will hit the ground first. C. Both will hit t the same time.

B. Ball will hit the ground first. D. Neither will hit the ground.

113. A boy and a girl riding on a merry-go-round which is turning at a constant rate. The boy is

near the outer rim and the girl is closer to the centre of rotation. Hoe do magnitudes of their

accelerations compare?

A. The girls acceleration is greater.

B. The boys acceleration is greater.

C. The boy and the girl both have zero acceleration.

D. They both the same non-zero magnitude acceleration.

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114. A piece of mud flies off the rim of a bicycle wheel. In what direction will it be going

immediately after leaving the wheel?

A. On a line directly away from the center of the wheel.

B. On a line at at a tangent to the edge of the wheel.

C. On a curved path moving around the wheel.

D. On a straight line directed somewhere between the center and the edge.

115. A golf ball is fired at a bowling ball initially at rest and bounces back elastically. Compared

to the bowling ball, the golf ball after the collision has __________.

A. lower magnitude momentum and less kinetic energy.

B. lower magnitude momentum but more kinetic energy.

C. greater magnitude momentum but less kinetic energy.

D. greater magnitude momentum but more kinetic energy.

116. A boy and a girl riding on a merry-go-round that is turning. The boy is twice as far as the

girlfrom the merry go rounds center. If the boy and the girlare of equal mass, which

statement is true about the boys moment of inertia with respect to the axis of rotation?

A. It is four times the girls.

B. It is twice the girls.

C. It is the same for both.

D. The boy has a greater moment of inertia but it is hard to determine how much more than

the girls it is.

117. Some children are riding on the outside edge of a merry-go-round. At the same time, the

children all move towards the center of the merry-go-round. When they do this, which

among the following happens?

A. The angular momentum of the system stays constant.

B. The moment of inertia of the system stays constant.

C. The angular velocity of the system stays constant.

D. The merry-go-round slows down.

118. A convex mirror has a focal length f. An opbject is placed between f and 2f from the mirror.

The image form is _______.

A. vrtual and enlarged C. real and enlarged

B. virtual and reduced in size D. real and reduced in size

119. Rays that pass through a lens very close to the principle axis are more sharly focused than

those that are very far from the axis. This spherical aberration helps us understand which of

the following phenomena?

A. We become more far-sighted as we become older.

B. We become more near-sighted as we become older.

C. We can only see in the black and white in dim light.

D. It is easier to read in bright light than it is in dim light.

120. If you lower a frequency of a wave in a string you will ___________.

A. shorten its period C. increase its wavelength

B. lower its speed D. lower its amptitude

121. Which is the method that uses organisms to clean up toxic waste?

A. Bioremediation C. Deforestation

B. Carrying capacity D. Monoculture

96


122. The process of restoring mined land to its original contours and vegetation is called

__________.

A. bioremediation C. reclamation

B. recycling D. reforestation

123. Which is NOT an effect of increase urbanization?

A. Increase of flooding C. Decrease of wetlands

B. Increasing volume of solid waste. D. Preservation of antural habitats

124. Why are ecosystems with high biodiversity more stable than those with fewer species?

A. They have a higher carrying capacity.

B. They have a higher number of species.

C. They recover from negative events more quickly.

D. They have a higher groth rate.

125. What combine with atmospheric moisture to create acid precipitation?

A. Carbon dioxide and sulfur oxide

B. sulfur oxide and nitrogen oxide

C. Carbon dioxide and ozone

D. nitrogen oxides and methane

126. Which one CORRECTLY explains global warming?

A. An increase in the concentration in ozone

B. A decrease in the amount of deforestation

C. A decrease in Earths average surface temperature

D. An increase in Earths average surface temperature

127. Which is an example of a way to improve efficiency in transportation?

I. se of fuel-efficient, hybrid, or electric cars

II. Carpooling

III. Use of public transportation

A. I, II and III C. II and III

B. I and II D. I and III

128. What is the production of two usable forms of energy at the same time from the same

process?

A. Sustainable energy C. Conservation

B. Energy efficiency D. Cogeneration

129. How is biogas produced?

A. Conversion of plant and animal waste in a digester

B. By mixing methane and oxygen

C. Using fertilizer in a digester container

D. Conversion of anaerobic bacteria to carbon dioxide gas

130. What is the process in which a heavy nucleus divides to form smaller nuclei, one or two

nucleus, and a large amount of energy?

A. Radioactive decay C. Nuclear fission

B. Nuclear reaction D. Nuclear fussion

97


131. Iodine is the mineral found in seafood and iodized salt. Which gland in the human body

needs iodine for the regulation of growth?

A. Pancreas C. Kidneys

B. Pituitary Gland D. Thyroid gland

132. Scurvey is caused by the lack of _______.

A. Vitamin B C. Vitamin C

B. Vitamin E D. Vitramin A

133. Which of the following parts of the digestive system is CORRECTLY paired with its

function?

A. Esophagus Digests carbohydrates C. Small intestine absorbs water

B. Stomach digests fats D. Liver produces bile

134. A food label on a cereal box gives you the following information: a serving size equals one

cup and there are 110 Calories per serving. You measure the amount of cereal you plan to

eat and find that it measures 1 1/2 cups. How many calories will you consume?

A. 110 Calories C. 220 Calories

B. 165 Calories D. 1,100 Calories

135. Which blood type is universal donor?

A. Type AB C. Type O

B. Type A D. Type

136. What is the largest organ in the human body?

A. Skin C. Heart

B. Liver D. Fish

137. Osteoporosis is a disease that results in weak bones. What food s would you need to eat to

help prevent tyhis disease?

A. Vegetables C. Root crops

B. Dairy products D. Fish

138. What do you call the device used to measure the blood pressure of a person?

A. Seismograph C. Stethoscope

B. Thermometer D. Sphygmomanometer

139. The process that most living organisms perform to obtain energyfrom suger and oxygen is

called __________.

A. breathing C. digestion

B. respiration D. glycolysis

140. Breathing is controlled by the part of the brain called __________.

A. cerebrum C. medulla oblongata

B. pons D. spinal cord

141. Why do seasons occur on Earth?

A. The sun rotates on its axis. C. Earths axis tlted.

B. Earth revolves on its axis D. Earth rotates on its axis.

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142. Which part of the flower develops into fruits?

A. Ovule C. Petal

`B. Ovary D. Anther

143. Trace the energy transformation when a flashlight is on.

A. chemical light electrical

B. electrical chemical light

C. chemical electrical light

D. electrical light chemical

144. Which of the following is unit of structure in all living things?

A. Tissue C. Cell

B. Organ D. Musle

145. Which is the correct sequenceof the stages of mitosis

A.Telophase, Anaphase, Metaphase, Prophase

B. Metaphase, Anaphase, Telophase, Prophase

C. Anaphase, Prophase, Metaphase, Telophase

D. Prophase, Metaphase, Anaphase, Telophase

146. The propulsion of jets and rockets is based on newtons law of __________.

A. Acceleration C. Inertia

B. Interaction D. Gravitation

147. Why are shadows formed?

A. Light travels through opague objects.

B. Light is reflected.

C. Light is refracted.

D. Light travels in a straight line.

148. What produces tremendous energy from the sun?

A. Nuclear disintegration C. Nuclear Fusion

B. Nuclear fission D. Nuclear decomposition

149. Which has a higher specific heat?

A. Sand C. Soil

B. Water D. wood

150. Sounds travel fastest in __________.

A. gas C. solid

B. liquid D. air

151. Which explains the absence of weather on the moon?

A. Moon rotates on itrs axis fast . C. Moons gravity is high.

B. Moon revolves very fast. D. Moon has no atmosphere.

152. Which law states that heat flows from the bodies at high temperature to one at low

temperature?

A. Thermodynamics C. Transformantion of renergy

B. Energy change D. Retention of energy

99


153. Which atomic particle determines the isotope of an element?

A. Positron C. Electron

B. Proton D. Neutron

154. Who proposed the theory of evolution that is based on natural selection?

A. Watson C. Lamarck

B. Darwin D. Mendel

155. What gas is released during photosynthesis?

A. Carbon dioxide C. Nitrogen

B. Oxygen D. Hydrogen

156. Which instrument is used to detect earthquake intensity?

A. Anenometer C. Seismograph

B. Barograph D. Clinometer

157. Which of the following radioactive emissions are arranged in the order of increasing

penetrating power?

A. Alpha, Gamma, Alpha C. Gamma, Beta, Alpha

B. Alpha, Beta, Gamma D. Beta, Gamma, Alpha

158. When light falls on a soap bubbles, the band of seven colors seen is due to _________.

A. Difraction C. Scaattering

B. Reflection D. Interference

159. Why can mirrors form clear images?

A. Light is regularly refracted.

B. Light is irregularly refracted.

C. The angle of incidence is equal to angle of reflection.

D. The angle of reflection is equal to the angle of refraction.

160. Why do we see the sun rising the east?

A. Earth rotates from west to east. C. Earth rotates from east to west

B. Earth revolves from east to west. D. Earths axis is tilted.

161. A community of living organisms interacting with their nonliving environment constitutes

a/an __________.

A. population C. species

B. ecosystem D. biosphere

162. Choose a possible food chain.

A. Corn rat cat C. Rice rat man

B. Corn man cat D. Rice cat rat

163. In the energy pyramid which is the ighest point?

A. Second order produces C. Firat order consumers

B. Produces D. Third order consumers

164. Which of the following pairs demonstrates symbiosis?

A. Man and lice C. Chick and corn plant

B. Monkey and banana D. Butterfly and bean flower

100


165. The zigzag to Baguio represents which kind of simple machine?

A. Lever C. Wedge

B. Wheel and axle D. Inclined plane

166. Why does mercury in the thermometer rise when in contact with hot water?

A. Heat increases number of molecules.

B. Heat makes molecules become bigger and farther apart.

C. Heat makes molecules move faster and farther apart.

D. Heat makes the molecules move slower.

167. Which blood type is a universal donor?

A. A C. AB

B. O D. B

168. Which nerve transmit message receive to the center of hearing of the brain?

A. Sensory C. Olfactory

B. Optic D. Auditory

169. Whcich affects theair sacs of the lungs and is common among cigarette smokers?

A.Asthma C. Emphysema

B. Tuberculosis D. Tracheal disorder

170. What tyoe of joint is responsible for bending our arms and legs?

A. Hinge C. Ball and socket

B. Pivot D. Sliding

171. Which protein found in plasma is responsible for blood clotting?

A. Globulin C. Serum

B. Albumin D. Fibrinogen

172. Which part of the brain is responsible for memory and intelligence?

A. Cerebellum D. Medulla

B. Cerebrum C. Thalamus

173. The Philippines belong to a biome called _________.

A. decidous forest C. tropical rainforest

B. taiga D. grassland

174. The factors that significantly contribute to an increase in human population are

__________________.

A. immigration and natality C. immigration and mortality

B. emigration and natality D. emigration and mortality

175. What is the common cause of the temporary wilting of plants at noon?

A. Increased condensation C. Rapid transpiration

B. Rapid respiration D. Increased oxidation

176. How can we identify a dicot leaf from a monocot leaf?

A. A dicot leaf has a smooth surface. C. A dicot leaf has parallel venation.

B. A dicot leaf has netted venation. D. A dicot leaf has a wide margin.

101


177. When the stems of vines grow around poles of fences, what kind of response is exhibited?

A.Geotropism C. HYdrotopism

B. Thigmotropism D. phototropism

178. Which of the following is the greatest contributor to our greenhouse effect?

A. Increase of Oxygen C. Increase of herbivores

B. Leaching of the soil D. Cutting forest trees

179. Why does a tree slowly die when its bark all around it is removed?

A. The cambium is injured.

B. The phloem vessels are cut.

C. The tree cannot manufacture food.

D. Its protective layer is cut.

180. Which is the growing vegetables and low plants in a nutrient-packed, aerated solution with

no soil at all?

A. Vegetative cultivation C. Hydroponics

B. Natural farming D. Aerial cultivation

181. When you carry a heavy load with one arm, you tend to hold your freehand away from your

body in order to ____________.

A. change the weight of your body and load

B. change the mass of your body

C. be ready to grab something in case you fall

D. change the center of gravityof your body and load

182. Why are door knobs placed at the edge of a door rather than in the center?

A. To increase the lever arm

B. To increase the force on the door

C. To help give momentum to the door

D. Closer to the edge of the doorway

183. Why is a dam built wider at the bottom than at the top?

A. To withstand the greater pressure at the bottom

B. To balance the pressure at the top

C. It holds up the dam better than at the center.

D. It anchors the dam better.

184. Archemedes principle states that an object is buoyed up by a force that is equal to the

_____________________.

A. volume of the fluid

B. weight of the fluid displaced

C. mass of the fluid displaced

D. mass of the object

185. When an ice cubein a glass of water melts, the water level _____________.

A. falss C. rises and spills

B. remains the same D. varies

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186. Two pots of the same size are filled with boiling water. One pot is colored white and the

other is black. In which pot will water cool faster?

A. Will cool at the same rate C. In black pot

B. In white pot D. In both pots

187. You inherited tallness from your father. Pysical trait are transmitted from parents to

offspring through __________.

A. gametes C. alleles

B. chromosomes D. genes

188. The handle of a spoon is dippedin a cup of hot water becomes warm. what is the method of

hot transfer?

A. Condensation C. convention

B. Radiation D. Conduction

189. The force required an object at a constant speed in free space is equal to ____________.

A. the weight of the object C. zero

B. the mass of the object d. the force required to stop it

190. Two people pull on a rope in a tug-of-war, each pull with a 400 N force. What is the tension

of the rope?

A. 800 N C. 400 N

B. 600 N D. 200 N

191. Why does a pressure cooker cook food faster?

I. Water boils faster.

II. It raises the boiling point of water.

III. It raises the cooking temperature of food.

IV. It is tightly closed.

A. II and III C. I, II and III

B. I, II and IV D. II and IV

192. You noticed that big industries have tower-like tall stacks. What is the structure for?

A. To control emission of hazardous gases

B. To induce rain and air pressure

C. To get enough air from the atmosphere

D. To make the interior cool

193. Stems burn are more damaging than burns caused by boiling water because steam

_____________.

A. has a higher temperature than boiling water

B. has more energy pe kilogram than boiling water

C. is vapor of water molecules during boiling

D. occupies more spaces that water during boiling

194. The removal of broken pieces of rocks from the parent rock by the action of wind or water is

termed ____________.

A. erosion C. weathering

B. deposition D. silting

103


195. The voltage across a transformer primary coil that has 100 turns is 10 V. What is the voltage

across the secondary coil which has 20 V turns?

A. 100 V C. 2 V

B. 10 V D. 20 V

196. Trace the conversion of energy that occurs when plants manufacture food.

A. Radiant energy to chemical energy

B. Radiant energy to kinetic energy

C. Mechanical energy to potential energy

D. Light energy to kinetic energy

197. Riders in a bus are pushed forward during a sudden stop. Which law of motion provides an

explanation?

A. Law of Inertia C. Law of Universal Gravitation

B. Law of Interaction D. Hook Law

198. What type of eclipse occurs when the moon is directly between the sun and the earth?

A. Partial Lunar C. Stellar

B. Lunar D. Solar

199. In our daily weather forecast, the region where two tropical wing systems converge,

characterized by showers and widespread thunderstorm is called?

A. warm and cold fronts C. Stellar

B. Intertropical convergent zone D. local disturbance zone

200. While travelling at a night, you lost direction. Which star would you look for and in what

constellation?

I. Polaris III. Ursa Minor

II. Rigel IV. Ursa Major

A. I and IV C. II and III

B. I and III D. II and IV

201. At present, a patient figth cancer by surgery or by drug treatment called _____________.

A. irradiation C. chemotherapy

B. viral treatment D. immune therapy

202. The U.S. was able to produce a test-tube baby through a process called __________.

A. gne pairing C. protoplast fusion

B. internal fertilization D. in vitro fertilization

203. Patients suffering from malfunction of the kidney are now assisted by a machine that serves

as artificial kidney called _____________.

A. hemoscope C. hemodializer

B. pacemaker D. homeostatic machine

204. The sun appears more reddish at sunset than at noon. Which of the following phenomena is

responsible for this effect?

A. Dispersion C. Scattering

B. Reflection D. Interference

104


205. Why do we hear thunder some seconds after seeing lightning?

A. Light travels faster than sound. C. Sound is released later actually

B. Sounds travel at 1,331 m/s. D. Light appears brighter in the sky.

206. Which is/are (an) advantage/s of the coming of Genetically Modified Organism (GMO)?

I. Improved resistance of plants to disease, pests and herbicides

II. Increase maturation time of fruits

III. Enhanced taste and quality

A. II and III C. I and II

B. I and III D. I only

207. Which is disadvantage of Genetically Modified Organism (GMO)?

A. Potential human health impact like allergens

B. Reduce maturation time

C. Fast food production

D. High cost of GMO food items

208. In the desire of governments to control population growth, which one is highly promoted?

A.The use of natural birth control methods C.Early marriage

B.The use of artificial birth control methods D. Balik probinsya program

209. How many the establishment of housing subdivisions to address housing problem contribute

to decreased food production

A. Men get occupied with construction and leave their farms untilled.

B. Ariable lands are reduced for these are converted into housing subdivisions.

C. Housing divisions become overcrowded.

D. People who flocked to the center where most subdivisions are located have no skills.

210. The use of plastic bags, disposable cups, plates, spoons, diapers, etc. makes life more

convenient. However, as a result what problems has/have come about?

I. Heaps on solid garbage

II. Floods

III. Epidemic

A. I and IV C.I, II and III

B. II and III D. I and II

211. The use of pesticides may increase crop yield but __________.

I. contributes to air pollution

II. cause water pollution

III. brings about pest resistance

A. I, II and III C. I and II

B. II and III D. II and III

4. Analyze advantages and disadvantages of different solutions to particular problems

105


212. A nuclear power plant may solve perennial brown outs but may bring about problems like

_________.

I. thermal pollution

II. water pollution

III. release of pollution

A. I only C. I and II

B. II and III D. I and III

213. Endangered species are species which are threatened due to _________.

A.habitat destruction C.mutation

B. extinction of the species D. domestication

214. If we experience greenhouse effect, we shall have________.

I. warmer climate

II. increase in level of CO2 in the atmosphere

III. cooler climate

IV. increase in the level of O2 in the atmosphere

A.I C. III and IV

B. I and II D. II

215. One consequence of global warming is coastal flooding because of the ___ which is in turn

caused by _______________________.

A. el nio phenomenon - Changed precipitation pattern

B. melting of the ice caps the rising of the sea level

C. rising of the sea level - melting of the ice caps

D. La nia phenomenon - Changed precipitation pattern

216. The contributory factors to acid rain are the use of ___________.

A. fossil fuels C. nuclear energy

B. pesticides D. refrigerants

217. The thinning down of the ozone layer is believed to cause ____________.

A. Heat stroke C. ulcer

B. baldness D. skin cancer

For numbers 218-222, refer to the vignette that follows. Choose the letter of the best

answer from the choices that follow.

5. Analyze the impact of technology on living and non-living things.

At Malaya Farms, a swarm of locusts and insects has been infesting the rice fields. This has forced some local farmers to stop the Farming process until a solution has been done.

Meanwhile, in the adjacent barrio, an outbreak of malaria is ongoing. With all this insect-borne

problems happening in his locale, the mayor has decided to initiate a pesticide intervention to

solve his towns problems. Considering their town budget, the city council is contemplating on

the use of dichlorodiphenyltrichloroethane (DDT) to eradicate the insects plaguing their

municipality.

106


218. Which among the following is an expected effect of DDT on the insects plaguing the town?

A. DDT will act as a contact poison on the swarming insects.

B. DDT will increase fertility of the soil so that plants can grow.

C. DDT will cause the insects to develop cancer and die.

D. DDT will make the insects infertile and prevent their multiplication.

219. Which among the following is an expected effect of DDT on the natural ecosystem of the

town?

A. DDT has no effect on natural wildlife.

B. DDT will cause increased fertility among chickens.

C. DDT is a productive toxicant causing ecosystem disruption.

D. DDT will cause pronounced carcinogenicity amog the farmers.

220. Which among the following are expected effects of DDT on the health of the people living

in the town?

I. Severe kidney damage

II. Diabetes mellitus

III. Breast cancer

A. I, II and III C. III only

B. I and II D. I only

221. Which alternatives to pesticides may be suggested to eradicate the insects causing malaria in

this region?

A. Cultivation of snails

B. Eradicating insect breeding pools

C. Use of insecticide-treated bednets

D. Vaccination against malaria

222. Which alternatives to DDT may be suggested to control the swarm of insects ravaging the

rice fields?

A. Cultivation of frogs C. Relocation of rice plantation sites

B. Fumigation D. Use of malathion or palathion



223. Which among the following methods of contraception has the least success rate?

A. Birth control pills

B. Condoms

C. Rhythm method

D. Intrauterine device

The town of Pulang Bato is experiencing a surge in population growth. Epidemiologic

has revealed that the rate of teenage pregnancies in their locality is increasing at an alarming

rate. City health officials have expressed concern over this matter. They intend to launch a safe

sex campaign advocating the use of artificial methods of contraception like condoms and pills.

The local church is vehemently opposing this move by the city government, advocating only

the use of natural contraception like the rhythm method.

107


224. Base on cost-benefit analysis, which of the following methods of populationcontrol would be

most appropriate if the town only had limited funds?

A. Oral contraceptive pills

B. Barrier contraception

C. Intrauterine device

D. Injectable contraceptives

225. Which intervention should be advocate to address the problem among teenagers?

A. Forums on safe sex and population education in school

B. Conducting a population education seminar for the parents

C. Offering abortion to interested parties

D. Accepting that there is no way to control teenage pregnancies

226. Which among the following is an expected long term complication on womens health in the

town if safe sex practices are not initiated?

A. Incresedincidence of ectopic pregnancies

B. Incresedincidence of suicide among females

C. Incresedincidence of diabetes mellitus and hypertension

D. Incresedincidence of cervical cancer

227. Which among the following is the only method of contraception that has 100% success rate?

A. Injectable contraceptives

B. Withdrawal method

C. Abstinence

D. Daily oral contrseptive pills



228. The following are known advantages of the use of nuclear power EXCEPT _____________.

A. decreased release of greenhouse gases

B. increased reliance on fossil fuels

C. astronomical amounts of energy generation

D. decreased cost of energy expenditure

229. Which among the following represents the single most important deterrent for the use of

nuclear power?

A. Disposal of radioactive wastes

B. Possibility of radioactive elements

C. Time frame needed for formalities, planning and buildingof a new nuclear plant

The Bataan Nuclear Power Plant is a nuclear power plant based in MOrong, Bataan,

Philippines. It was commissioned by President Ferdinand Marcus and building commence in

1976. The plants construction was completed in 1984. When Marcos was overthrown and

replaced by Corazon Aquino, the powerplant project was crapped. A major concern is that the

nuclear plant is located in an area where aerthquakes are likely to occur. To this day, th

Bataan Power Plant has remained unused. I+UP until April 2007, the Philippine government

had to pay 155,000 dollars every day to pay for the loan that funded the power plants

construction.

108


230. Nuclear power relies on which of the following chemical reactions?

A. Nuclear fusion C. chemiosomosis

B. Binary fusion D. Nuclear fission

231. Which among the following world events sparked international debate against nuclear

power?

A. Chernobyl accident C. Haiti incident

B. Minamata accident D. Ormoc tragedy

232. Which among the following is the single most important effect of radiation exposure on

human health?

A. Hypertension C. Heart disease

B. Cancer D. Skin, muscle and bone problems

For numbers 233-237, refer to the scientific case described below. Choose the best answer to the

questions that follow.

233. Which among the following is NOT a suitable option for wate disposal in this city?

A. Vaporization C. Incineration

B. Landfills D. Recycling

234. The following are possible adverse effects of the use of sanitary landfills, EXCEPT

________.

A. pollution of local government

B. fatal accidents (scavengers buried under waste piles)

C. decrease amount of disease vectors

D. dust, odor and noise pollution

235. Which is the single most important deterrent on the use of incinerators for garbage disposal?

A. Heavy metal toxicity

B. Dioxin and furan emission

C. Highly toxic ashes flying around incinerator site

D. Cost of operation

236. The following are solid waste products which can be recycled, EXCEPT ___________.

A. leftover food C. beverage cans

B. pet bottles D. pvc materials

237. At the level of peoples homes, which among the following interventions can best help in

solid waste management?

A. Backyard burning of trash

B. Composting

C. Four oclock habit

D. Trash sorting prior to disposal

Wast disposal is a huge challenge for the urban municipally of Metropolis. its

expensive and time consuming to collect millons of tons of trash every year, and there are risks

to the invironment no matter how waste disposal is done. The city government is presently

determining which method of waste disposal is best suited for their municipality.

109


ANSWER KEY

SCIENCE

1 A 53 B 105 D 157 B 209 B

2 C 54 B 106 A 158 D 210 D

3 C 55 D 107 C 159 C 211 A

4 A 56 B 108 D 160 A 212 D

5 C 57 D 109 B 161 B 213 A

6 B 58 A 110 D 162 A 214 B

7 B 59 A 111 C 163 D 215 C

8 D 60 D 112 C 164 D 216 A

9 C 61 B 113 B 165 D 217 D

10 B 62 C 114 B 166 C 218 A

11 A 63 C 115 D 167 B 219 C

12 D 64 A 116 A 168 B 220 A

13 C 65 B 117 A 169 D 221 B

14 B 66 B 118 B 170 A 222 C

15 A 67 C 119 D 171 D 223 C

16 D 68 A 120 C 172 B 224 B

17 A 69 D 121 A 173 C 225 A

18 B 70 B 122 C 174 A 226 D

19 A 71 D 123 D 175 C 227 C

20 C 72 A 124 C 176 B 228 B

21 B 73 B 125 B 177 B 229 A

22 A 74 D 126 D 178 A 230 D

23 D 75 A 127 D 179 B 231 A

24 A 76 C 128 D 180 C 232 B

25 B 77 D 129 A 181 D 233 A

26 B 78 D 130 B 182 A 234 C

27 A 79 C 131 D 183 A 235 B

28 D 80 B 132 C 184 B 236 A

29 A 81 D 133 D 185 B 237 D

30 A 82 C 134 B 186 C

31 D 83 C 135 C 187 D

32 C 84 D 136 A 188 D

33 A 85 A 137 B 189 C

34 A 86 A 138 D 190 C

35 A 87 D 139 B 191 A

36 A 88 C 140 C 192 A

37 A 89 B 141 C 193 B

38 C 90 C 142 B 194 A

39 B 91 C 143 C 195 C

40 A 92 B 144 C 196 A

41 D 93 C 145 D 197 A

42 A 94 A 146 B 198 D

43 A 95 D 147 D 199 B

44 B 96 A 148 C 200 B

45 A 97 D 149 B 201 C

46 D 98 A 150 C 202 D

47 C 99 B 151 D 203 C

48 A 100 B 152 A 204 C

49 A 101 A 153 D 205 A

50 D 102 B 154 B 206 B

51 A 103 B 155 B 207 A

52 A 104 D 156 C 208 B

4-let - general education - science 82-109

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