EARTH SCIENCE, NATURAL SCIENCE 2, GENERAL SCIENCE LET REVIEW
NATURAL SCIENCE 02
1) A "shooting star" is really a ________ passing through the Earth's atmosphere.
a. collection of dark matter
b. ball of burning gases
c. meteoroid
d. dense patch of solar wind
2) What is the purpose of sphygmomanometer?
a. To measure blood pressure
b. To measure hypertension
c. To measure body temperature
d. To measure heart beat
3) The amazon river flows into which body of water?
a. The Atlantic Ocean
b. Lake Huron
c. The Pacific Ocean
d. The Ionian sea
4) The Great Victoria Desert is located in which country?
a. USA
b. Egypt
c. Australia
d. Mexico
5) Which of the following is NOT a type of forest?
a. Tropical dry
b. Aqueous arboreal
c. Sparse tress and parkland
d. Temperate needleleaf
6) Taiga forests are characterized by which type of trees?
a. Maidenhairs
b. Coniferous
c. Deciduous
d. Cycads
7) What is the largest desert in South America?
a. The Inexistente Desert
b. The Patagonian Desert
c. The Monte Desert
d. The Peruvian Desert
8) All of the following are types of flatlands that are NOT called plains, EXCEPT:
a. Playas
b. Marshes
c. Steppes
d. Swamps
9) The Gobi Desert lies on the border of which two countries?
a. China and India
b. Russia and Kazakhstan
c. Mongolia and China
d. India and Pakistan
10) At what speed does the Earth travel as it orbits the sun?
a. 60 km/s
b. 50 km/s
c. 30 km/s
d. 70 km/s
11) What is the most abundant gas in our atmosphere?
a. Nitrogen
b. Helium
c. Hydrogen
d. Argon
12) What is the average diameter of the Earth?
a. 57,341 km
b. 20,489 km
c. 6,530 km
d. 12,742 km
13) Lake Baikal can be found in which country?
a. Russia
b. China
c. Bangladesh
d. Romania
14) The ozone layer is located in which level of the atmosphere?
a. Exosphere
b. Mesosphere
c. Stratosphere
d. Troposphere
15) The solar terminator or twilight zone refers to what?
a. an asteroid belt
b. a dense band of dark matter
c. the line between day and night
d. the edge of a black hole
16) Which effect causes the sky to appear blue to us?
a. The Coriolis Effect
b. The Greenhouse Effect
c. Rayleigh Scattering
d. The Placebo Effect
17) Approximately how old is the planet Earth?
a. 4.5 billion years
b. 65.4 billion years
c. 1.2 trillion years
d. 769 million years
18) On what date each year is the Earth closest to the Sun, also referred to as the Earth's
perihelion?
a. August 8th
b. January 3rd
c. December 30th
d. June 11th
19) Robert Edwin Peary claimed to be the first person to reach what location?
a. The Moon
b. The North Pole
c. The Marianas Trench
d. The Summit of Mount Everest
20) In August 1500, Diogo Dias discovered an island that he named St. Lawrence. Today that island
is called ________.
a. Hawaii
b. Cuba
c. Greenland
d. Madagascar
21) The consumption of beef is strictly forbidden by:
a. Judaism
b. Islam
c. Hinduism
d. Catholicism
22) Washing soda is the common name for
a. Sodium carbonate
b. Calcium bicarbonate
c. Sodium bicarbonate
d. Calcium carbonate
23) The hardest substance available on earth is
a. Gold
b. Iron
c. Diamond
d. Platinum
24) Reading of a barometer going down is an indication of?
a. snow
b. storm
c. intense heat
d. rainfall
25) A chronometer measures:
a. color contrast
b. sound waves
c. time
d. water waves
26) Fathom is the unit of
a. sound
b. depth
c. frequency
d. distance
27) Nuclear fission is caused by the impact of
a. neutron
b. proton
c. deuteron
d. electron
28) When a gas is turned into a liquid, the process is called
a. condensation
b. evaporation
c. deposition
d. sublimation
29) Which of the following parts of the sun is easily visible only during a total solar eclipse?
a. core
b. photosphere
c. sunspots
d. corona
30) The fastest-running terrestrial animal is
a. cheetah
b. lion
c. man
d. jaguar
31) Which prefix is often used with scientific terms to indicate that something is the same, equal or
constant?
a. iso
b. mega
c. meta
d. quasi
32) Cystitis is the infection of which of the following?
a. liver
b. urinary bladder
c. pancreas
d. lung
33) Yeast, used in making bread is a ________.
a. fungus
b. plant
c. bacteria
d. seed
34) Titan is the largest natural satellite of planet?
a. Mercury
b. Venus
c. Saturn
d. Neptune
35) The marine animal called dugong which is vulnerable to extinction is a/an:
a. Amphibian
b. Bony fish
c. Shark
d. Mammal
36) The disease diphtheria affects _________.
a. Lungs
b. Intestine
c. Throat
d. Body joints
37) The animal which uses sounds as its 'eyes' is?
a. Dog
b. Cat
c. Snake
d. Bat
38) Silk is produced by
a. Egg of silkworm
b. Pupa of silkworm
c. Larva of silkworm
d. Insect itself
39) Which one of the following is a water soluble vitamin?
a. Vitamin A
b. Vitamin C
c. Vitamin D
d. Vitamin K
40) Which of the following planets rotates clock wise?
a. Mars
b. Jupiter
c. Venus
d. Mercury
41) Water boils at a lower temperature on the hills because?
a. It is cold on the hills
b. There is less carbon dioxide on the hills
c. There is a decrease in air pressure on the hills
d. There is less oxygen
42) In the human body, Cowper’s glands form a part of which one of the following?
a. Digestive system
b. Endocrine system
c. Reproductive system
d. Nervous system
43) In normal adult human, what is the rate of heartbeat per minute?
a. 72-80
b. 70-75
c. 80-97
d. 82-87
43) The weight of an object will be minimum when it is placed at
a. The North Pole
b. The South Pole
c. The Equator
d. The center of the Earth
44) Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good
source of antioxidants. How do antioxidants help a person maintain health and promote longevity?
a. They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin
deficiency.
b. They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid
unnecessary wastage of energy.
c. They neutralize the free radicals produced in the body during metabolism.
d. They activate certain genes in the cells of the body and help delay the ageing.
45) The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge
against coastal calamities. How do mangroves function as a safety hedge?
a. The mangrove swamps separate the human settlements from the sea by a wide zone in which
people neither live not venture out.
b. The mangroves provide both food and medicines which people are in need of after any natural
disaster.
c. The mangrove trees are tall with dense canopies and serve as an excellent shelter during a
cyclone or tsunami.
d. The mangrove trees do not get uprooted by storms and tides because of their extensive roots.
46) Most commercial nuclear power plants worldwide are cooled by
a. sodium
b. mercury
c. helium
d. water
47) Plants get their nitrogen from
a. rain
b. the soil
c. the air
d. the bedrock
48) Which is the longest?
a. a kilometer
b. a centimeter
c. a dekameter
d. a terameter
49) Which is the largest blood vessel in the body?
a. Alveoli
b. Artery
c. Aorta
d. Vein
50) What is a young horse called?
a. Colt
b. Filly
c. Foal
d. Hack
ANSWERS:
1. C
2. A
3. A
4. C
5. B
6. B
7. B
8. C
9. C
10. C
11. A
12. D
13. A
14. C
15. C
16. C
17. A
18. B
19. B
20. D
21. C
22. A
23. C
24. D
25. C
26. B
27. A
28. A
29. D
30. A
31. A
32. B
33. A
34. C
35. D
36. C
37. D
38. C
39. B
40. D
41. C
42. C
43. A
44. C
45. D
46. D
47. B
48. D
49. C
50. C
EARTH SCIENCES
1. Name of the Earth's moon
A. Selena
B. Luna (√)
C. Diana
D. Artemis
2. These are grasslands from South America
A. Pampas (√)
B. Prairies
C. Ranchos
D. Estancias
3. Triangular-shaped land
A. Peninsula
B. Isthmus
C. Delta (√)
D. Gorge
4. Largest island in Asia
A. Java
B. Maluku
C. Borneo (√)
D. New Guinea
5. Shanghai is a Chinese word for what
A. Above the sea (√)
B. River mouth
C. Yellow River
D. Abode of Snow
6. Rocks formed when magma cool down
A. Igneus (√)
B. Metamorphic
C. Sedimentary
D. Pumice
7. Other word for Relief Map
A. Physical Map
B. Political Map
C. Thematic Map (√)
D. Isothermal Map
8. Atmospheric layer for planes
A. Stratosphere (√)
B. Mesosphere
C. Troposphere
D. Exosphere
9. Long steep air driven rock formation in an arid land particularly in Wild West
A. Butte (√)
B. Fjord
C. Canyon
D. Mesa
10, Tropical depression formed in southern Pacific
A. Cyclone
B. Hurricane
C. Willy-Willy (√)
D. Typhoon
GENERAL SCIENCE with answer key.. 1-100
God Bless us
POST – TEST
Multiple Choices:
1. These are living things that use sunlight, chlorophyll, water and carbon dioxide to produce food.
a. Autotrophs c. Heterotrophs
b. Consumers d. Food chain
2. It is describe as the lifeline of the body. IT is the body’s “pickup” and delivery system.”
a. Blood c. circulatory system
b. nervous system d. heart
3. It carries the oxygen-rich blood to the head, arms, and chest and down to the waist and the legs.
a. heart c. aorta
b. ventricles d. arteries
4. They are the transmitters of message from the different parts of the body to the brain and vice
versa.
a. spinal cord c. brain
b. neurons or nerve cells d. arteries
5. Which part of the brain controls the following activities: breathing, blood pressure, heart rate,
alertness?
a. brainstem c. cerebrum
b. hypothalamus d. spinal cord
6. Refers to a sequence of organism in a community that constitutes a feeding chain.
a. photosynthesis c. consumers
b. ecosystem d. food chain
7. Is a group of interacting plants, animals and human in a particular area?
a. ecological community c. living organism
b. environment d. food chain
8. Excessive presence of carbon dioxide in the air, trapping heat near the earth’s surface causing a
rise in temperature in the environment.
a. El Nino c. Deforestation
b. “Greenhouse Effect” d. Weather disturbance
9. The Earth’s shield against sun’s harmful radiation.
a. Atmosphere c. Ozone layer
b. Air d. Forest
10. The use of product containing ______ is discouraged because they contribute to the depletion
of_____.
a. Chlorofluorocarbon-solar radiation
b. Gas-ozone layer
c. Ozone layer air
d. Chlorofluorocarbon-ozone layer
11. What causes high and low tides?
a. Earth’s rotation on its axis
b. Moon’s gravitational pull
c. Sun’s solar energy
d. Earth’s gravitational pull
12. How is coral a tool formed?
a. Volcanic eruption
b. Corals growing around a volcanic island
c. Underwater bedrock formations
d. Earthquake
13. What is a long shore drift?
a. Movement of sand and shingles along the coast
b. Sand bars
c. Accumulation of sad at the river mouth
d. Island formed by volcanic eruptions
14. How does an occlusion form?
a. Cold air moving up from the ground
b. Cold front pushing warm air up of the ground
c. Unbalance electrical reaction in the air
d. Cold and warm air mixing in the atmosphere
15. What is a eat haze?
a. A reflection caused by pollutants in the air
b. A distorted image resulting from the bending o sun’s light rays by changes in air temperature
c. A movement o warm air over a vast expanse of land
d. Caused by extremely high temperature common in dessert areas
16. What sort of rock formation do the world’s greatest mountain ranges consist of?
a. Magma c. Fold eruptions
b. Chalk deposit d. Slip formation
17. What is the fore that wears down mountains?
a. Earthquake c. Volcanic eruptions
b. Erosion d. Deforestation
18. How are volcanic island formed?
a. Collision of two oceanic plates
b. Cooling of lava by seawater
c. Volcanic eruptions
d. Accumulation of corals
19. When the Theory of plate Tectonics was generally accepted?
a. 1900’s c. 1950’s
b. 1930’s d. 1980’s
20. The weathering away of rocks by water, wind and ice.
a. Denudation c. Volcanic rock
b. Erosion d. Metamorphic rock
21. How do hormones work?
a. By releasing adrenaline
b. By controlling cell chemistry
c. By regulating water loss
d. By controlling blood pressure
22. Name the male and female sex hormones
a. Sperm cell & Ovum c. Chromosomes
b. Testosterone d. Red & white blood cells
23. The unit of measurement of energy in a given an mount of food
a. Pound c. Olfactory system
b. Kilo d. calorie
24. Nitrogen compounds known as the building blocks of proteins
25. The growth of roots towards water is an example of?
a. Chemotropism c. Hydrotropism
b. Geotropism d. Phototropism
26. DNA means
a. Data nurturing analysis c. Deoxyribonucleic acid
b. Deoxytribonucleic acid d. Deotrixyl nucleic acid
27. What are the three products of oxygen when it has been burned?
a. Water, carbon dioxide and air
b. Energy, water and carbon dioxide
c. Energy, carbon and oxide
d. Energy, air and water
28. In flowering plants, fertilization happens in the?
a. Pollen tube c. Ovules
b. Stamen d. Pollen grain
29. The development of egg without fertilization
a. Mitosis c. Spermatogenesis
b. Parthenogenesis d. Mitochondria
30. Which of the following is a source of energy needed for photosynthesis?
a. Water c. Light
b. Soil d. Fertilizer
31. Chemistry is primarily concerned with the composition and changes of?
a. Nature c. Man
b. Matter d. Earth
32. A scientific theory is
a. A hypothesis not yet subjected to experimental test
b. An idea that correctly predict the result
c. An imagination
d. A guess
33. Which of the following units of measure is equivalent to cubic centimeter?
a. Milligram c. Millimeter
b. Milliliter d. Centiliter
34. Which of the following is NOT a compound?
a. acetic acid c. magnesium
b. alcohol d. Zinc Oxide
35. The easier the atom to receive electrons is measured by its?
a. Elecrtonegativity c. Number of shells
b. Atomic radius d. Valence electrons
36. The willingness o an atom to receive electron is measured by its?
a. Electronegativity c. Atomic size
b. Ionization potential d. Electron affinity
37. A molecule is said to be polar or dipole 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
38. Which of the following is NOT a physical property of water?
a. freezing point at 0 degree C
b. boiling point at 100 degrees C
c. its’ heat of fusion at 80 cal/g.
d. its’ density at 4 degrees at 1 lb/cu. Ft
39. Which of the following statements is true?
a. Molecular weight does not influence boiling and melting point of a substance
b. Boiling and melting point tend to increase with molecular weight
c. Boiling and melting point tend to decrease with molecular weight
d. None o the above
40. A Mole is the amount of substance or a mass of a substance that contains?
a. 6.02 x 1023 particles c. 6.02 x 1023 particles
b. 60.2 x 1023 particles d. 60.2x 1023 particles
41. It is the measure of the amount of matter in an object
a. Weight c. Volume
b. Mass d. Quantity
42. It is the distance traveled by the body per unit time and tell how fast or slow the body moves
a. Velocity c. Acceleration
b. Speed d. None of the above
43. The rate of change of the distance traveled per unit time in a stated direction
a. Velocity c. Acceleration
b. Speed d. None of the above
44. This law states that the force acting upon an object is equal to the product o the mass and
acceleration of the object
a. Newton’s 2nd law of motion
b. Newton’s 3rd law of motion
c. Newton’s 1st law of motion
d. None of the amount
45. When a force is applied to a body, several effects are possible. Which one of the following effect
CAN”T occur?
a. the body rotates
b. the body changes direction
c. the body increase its mass
d. the body changes shape
46. It is the reluctance of the object to change either its’ state of rest or uniform motion in a straight
line
a. Force c. Inertia
b. Friction d. Motion
47. This law states that energy cannot be created nor destroyed but only changes from one form to
another
a. Energy law
b. Kinetic Theory of Matter
c. Law of Conservation Energy
d. None of the above
48. This law states that matter is made up of a large number of molecules which are in continuous
motion
a. Boyles’s Law c. Law of Conservation Energy
b. Kinetic Theory d. None of the above
49. The lowest possible temperature that a substance can reach
a. Freezing point c. Steam point
b. Absolute Zero d. Threshold
50. It is the amount of heat required to raise the temperature of kg. of a substance by degree C
a. Calorie c. Specific heat capacity
b. Watt d. Joule
51. The relationship of give-and-take of living organism in the biosphere is a balance of nature
called________.
a. universal relationship
b. symbiotic relationship
c. spontaneous relationship
d. abiogenetic relationship
52. Process of removing excess odor in water.
a. sedimentation c. distillation
b. chlorination d. aeration
53. Which of the following statement is CORRECT?
a. As altitude increases, atmospheric pressures corresponding
b. Throughout the available space, gas tends to contract
c. Equal chances are always given to all in life
d. Shadow is formed when a colored object is projected against the wall
54. The earth rotates on its axis from west to east. This causes the sun to _______?
a. appear with a fiery orange color
b. cause the appearance of solar eclipse
c. rise room the east and sets in the west
d. emit solar radiation
55. One of these planets has the greatest gravitational pull. Which one is it?
a. Mars b. Earth c. Mercury d. Jupiter
56. It is the law which explains why one can pull a piece without topping a glass in a quick motion.
a. energy in motion c. law of inertia
b. gravity d. force
57. Which of the following is NOT a source of energy?
a. water c. geothermal heat
b. nuclear d. inertia at rest
58. Which instrument will one use to convert mechanical energy to electrical energy?
a. rotor b. generator c. motor d. circuit
59. Sun’s energy is generated by?
a. nuclear fission
b. sun enacting with gravity
c. nuclear fusion reaction
d. reaction with magnetic field
60. Application of energy is called _______?
a. work c. kinetics
b. inertia d. simulation
61. The falling of any form of water from the air to the earth’s surface
a. Condensation c. Water vapor
b. Precipitation d. Rainwater
62. The part of the atmosphere that filters the ultraviolet rays of the sun
a. stratosphere c. Ozone layer
b. Troposphere d. Ionosphere
63. The point in the earth’s orbit nearest to the sun
a. Solstice c. Aphelion
b. Eclipse d. Perihelion
64. A property of minerals which gives off rays of light when exposed to ultraviolet light.
a. Luminescence c. Radiation
b. Phosphorescence d. Fluorescence
65. Which process involves chemical weathering?
a. Carbonation c. Hydration
b. Oxidation d. All of the above
66. How long does it take for the earth to complete one rotation
a. 365 days c. 24 hours
b. 30 days d. 12 hours
67. What is the principal function of gravity in the universe?
a. Provision for energy
b. Keeps the stars and other heavenly bodies in orbit
c. Causes movement in space
d. Part of universal design
68. What does the word “monsoon” mean?
a. Moon will soon come c. Seasons
b. Rains d. Wet weather
69. Its’ discovery enable geologist to date rocks accurately
a. layering c. Radioactivity
b. Evolutionary staging d. Carbon-dating
70. It occurs when the earth is between the sun and the moon, with the earth’s shadow cast over the
moon.
a. Total eclipse c. Eclipse
b. Lunar eclipse d. Partial Eclipse
71. Male and female reproductive part of a flower
a. Pollen grains and ovules c. Pollen grains and pistil
b. Stamen and pistil d. Stamen and ovules
72. In the human body, the cell that most nearly resembles a one-celled animals
a. Red Blood cell c. Nerve cell
b. White Blood cell d. Antibodies
73. The main energy source of a plant-eating animals
a. Glucose b. Starch c. Cellulose d. Glycogen
74. These are cellular secretions which help regulate the breakdown and buildup of various
substance in the body
a. Enzymes c. Plasma
b. Amino Acids d. Hormones
75. It is the energy source of the cell which it uses for growing, reproducing and other activities
a. Adenosine Triphosphate c. Chloroplast
b. Amino Acids d. Sunlight
76. It is a segment of DNA molecule which controls the appearance of a given trait
a. Chromosomes c. Gametes
b. Genes d. Zygotes
77. Group of similar cells performing similar functions together
a. Organs b. System c. Nucleus d. Tissue
78. The diffusion of water through a semi permeable membrane
a. osmosis c. Transfusion
b. permeability d. Capillary
79. It shows the complex food relationship of organism in a given area and the cyclic flow of food
through organisms
a. Food chain c. Food pyramid
b. Food web d. Biological cycle
80. 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
81. Energy removal is best illustrated in
a. boiling of liquid substances
b. changing water to ice
c. changing water to stem
d. none of the above
82. Refers to the maximum amount of solute expressed in grams that can be dissolved in 100 grams
of water at a specific temperature
a. Solubility c. Molarity
b. Stability d. Molality
83. Compounds with the same molecular formula but with different structural formulas
a. Cellulose c. Polymers
b. Isomers d. Monomers
84. The most penetrating type of radiation given of by radioactive elements
a. Alpha particle c. Gamma particle
b. Beta particle d. None of the above
85. The basic unit for expressing the masses o individual atoms
a. Atomic number c. Nucleus
b. Atomic mass unit d. Atomic weight
86. A substance that speeds up a chemical reaction without itself undergoing a chemical change
a. catalyst c. Electrolytes
b. Enhancer d. Ionizer
87. The temperature at which the vapor pressure of the liquid is equal to the pressure of the
surroundings atmosphere
a. Melting point c. Boiling Point
b. Critical point d. None of the above
88. the warming of the earth’s surface due to an increase in atmospheric carbon dioxide
a. “Greenhouse effect” c. Atmospheric pressure
b. Ozone d. El Nino phenomena
89. Describe the force of gravity on an object
a. mass c. capacity
b. weight d. pressure
90. When gaseous molecules are compressed, they tend to?
a. increase in volume c. repel each other
b. decrease in volume d.attract and liquefy
91. It is the union of two light nucleus to form a heavier nucleus, resulting in a mass defect and
release of energy
a. Radiation c. Nuclear Fusion
b. Nuclear Fission d. Radioactivity
92. Which of the following statements is a characteristic of an electronic spectrum?
a. They all travel at the same speed in fire space
b. The exhibit diffraction and interference phenomena
c. They follow the laws of refraction and reflection
d. All of the above
93. The term “RADAR” is derived from the phrase?
a. “Radiation Detection and Ranging “
b. “Radiation Diffusion and Ranging”
c. “Radio Diffraction and Resolution”
d. “Radiation Diffraction and Resolution”
94. A material whose ability to conduct electricity lies between those of conductors and insulators
a. Integrated Circuits c. Semiconductors
b. Silicon Chips d. Insulators
95. “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
96. What is the color of a transparent substance?
a. The color of the light it absorbs
b. The color of light it reflects
c. The color of light it transmit
d. The color of light it refracts
97. What is a rotating electromagnetic called?
a. Motor b. Rotor c. Phasor d. Sensor
98. What happens with the centripetal force when sped is doubled?
a. remains the same c. triples
b. force is increase 4x d. force is doubled
99. What is an electrochemical cell in which the reacting materials can be renewed by the use o
reverse current
a. Storage cell c. Fuel cell
b. Primary cells d. Chemical cell
100. What will make an object move in a circular path?
a. Central force c. Frictional force
b. Gravitational d. Electromagnetic force
***** THE END *****
WORK HARD, DREAM HARDER
science and health
1 a 51 b
2 c 52 d
3 d 53 a
4 b 54 c
5 a 55 d
6 d 56 c
7 a 57 d
8 b 58 b
9 c 59 c
10 d 60 a
11 b 61 b
12 b 62 c
13 a 63 d
14 b 64 b
15 b 65 d
16 c 66 c
17 b 67 b
18 a 68 c
19 c 69 c
20 b 70 b
21 b 71 b
22 b 72 b
23 d 73 c
24 d 74 d
25 c 75 a
26 c 76 b
27 b 77 d
28 c 78 a
29 b 79 b
30 c 80 d
31 b 81 b
32 a 82 a
33 b 83 b
34 c 84 c
35 d 85 b
36 d 86 a
37 b 87 c
38 b 88 a
39 b 89 b
40 c 90 a
41 b 91 c
42 b 92 d
43 c 93 a
44 a 94 c
45 c 95 a
46 d 96 c
47 b 97 b
48 b 98 d
49 b 99 a
50 c 100 a