Science Reviewer J
1. PLATELETS = tiny colorless living particles that help in
the formation of BLODD CLOTS.
2. VEINS = the tubes that bring un-oxygenated blood back TO
the HEART.
3. CEREBRUM = the LARGEST part of the BRAIN.
4. CEREBRAL PALSY = GENERAL term for NON-PROGRESSIVE MOTOR
DISORDER.
5. CEREBELLUM = “LITTLE BRAIN”
6. ANEMIA = the disease that occurs when there is A DECREASE
in the number of RED BLOOD cells.
7. ARTERIES = the tubes that carry blood AWAY from the
HEART.
8. EMBRYOLOGIST = the SCIENTIST who study the REPRODUCTION
and DEVELOPMENT of organisms.
9. VAGINA = the BIRTH CANAL.
10. CERVIX = the LOWER end of the UTERUS.
11. PUBERTY = the STAGE between being a KID and becoming an
ADULT.
12. 28 DAYS = the menstrual cycle lasts
13. PENIS = EXTERNAL MALE reproductive ORGAN
14. SCROTUM = A POUCH where the TESTES are located
15. OVARIES = the REPRODUCTIVE ORGAN in FEMALE
16. FERTIZATION = the UNION of an EGG and SPERM
17. MENARCHE = the FIRST MENSTRUATION
18. DIAPHRAGM = CONTRACTS and MOVES DOWM when you INHALE
19. BLADDER = the place where URINE is TEMPORARILY HELD
20. NEPHRONS = FILTERING UNITS of the KIDNEY
21. ECOLOGY = Scientific study of the INTREACTIONS between
ORGANISMS and their ENVIRONMENTS
22. MIGRATION = the MOVING IN and OUT in the COMMUNITY
23. MUTUALISM = the RELATIONSHIP wherein BOTH organisms
BENEFIT from EACH OTHER.
24. They live in BOTH land and water.
a. reptiles B. amphibians c.
mammals d. birds
25. Lizards, snakes, turtles and alligators are_____?
A. reptiles b. amphibians c. mammals d. birds
26. Cow, blue whale, bat and man are_____?
a. reptiles b. amphibians C. mammals d. birds
27. It is the green pigment present in the green leaves.
A.
chlorophyll b. carotene c. leucoplast d. xanthoplast
28. They are also called producers.
a.
heterotrophs b. saprophytes C. autotrophs d. none of the above
29.
Which part of the mansanilya plant is best for medicine?
a.
leaves B. flowers c. stems d. roots
30. Which of these medicinal plants is used for cough?
a. guava b. kaimito C. oregano d. santol
31. The change that occurs in a substance but remain the
same kind of substance.
a. chemical
change B. physical change c. chemical property d. physical property
32. A change from solid to liquid phase is referred to as
_____?
a. boiling B. melting c. freezing d. heating
33. A bar of chocolate placed under the sun will turn to
____?
a. solid chocolate b. melting chocolate c. frozen chocolate D.
liquid chocolate
34. What process is involved in the formation of water drops
at the side of a glass with ice cubes?
a. freezing b. evaporation C. condensation d. heating
35. The unit to express current is ?
a. volts b. watt C.
ampere d. kilowatt
36. Atomic particles that carry a negative electric charge
are called?
a. neutrons b. positrons C. electrons d.
protons
37. Between which particles would an electric force of
attraction occur?
a.
proton-proton b. electron-electron c. neutron-neutron D. proton-electron
38. The three methods by which an object can be electrically
charged are conduction, induction and
_______.
A. friction b. resistance c. direct current d. alternating current
39. The opposite charges exert a force of
a. repulsion B. attraction c. friction d. electricity
40. Which of these is not a load?
a. electric
fan B. battery c. light bulb d. aircon
41. It makes work easier and faster.
A. machine b. man c. worker d. inclined plane
42. It is a double inclined plane.
A. wedge b. pulley c. screw d.
wheel and axle
43. It is a flat surface which one end is elevated.
a. seesaw b. pulley c. wedge D.
inclined plane
44. It is a rotating lever in which two wheel are mounted on
the axle.
a. wedge b.
pulley c.
inclined plane D. wheel and axle
45. It brings up object as one ends is pulled.
a. wedge B. pulley c. screw d. wheel and axle
46. The scientist who studies the earth’s surfaces and the
rocks that form them.
a. Biologist B. Geologist c. Meteorologist d. Gemologist
47. The no charge particle.
a. positron b. electron N. neutron d.
proton
48. The animals that are solely depend on plants for food.
a. carnivores b. omnivores C. herbivores d.
vegetarians
49. Which of the following is a metal?
a. Chlorine b. Nitrogen c. Xenon D.
Calcium
50. The energy associated with motion or moving parts.
a. electric
energy B. mechanical energy c. sound energy d. light energy
51. The device used to measure speed
a.
accelerator B. speedometer c. barometer d. radar
52. The center of the solar system
a. earth B. sun c. moon d. star
53. The outer layer of the earth
A. crust b. core c. mantle d. lithosphere
54. The material that cannot absorb heat
a. metal b. copper c. conductor D. insulator
55. A point in the fault where the first break happens
A. focus b. epicenter c. surface d. seismic wave
56. The force that hinders an object from moving
A. friction b. gravity c. motion d. acceleration
57. The violent shaking or trembling of the ground
A. earthquake b. typhoon c. hurricane d.
cyclone
58. One (1) Joule is equal to ____?
a. meter/sec2 B.
Newton-meter c. Newton/sec2 d. kilometer
59. What is work done if a force of 10 Newton is used to
lift a rock 5 meters high?
a. 2 Newton-meter b. 5 Newton-meter C. 50 Newton-meter d.
15 Newton-meter
Work = Force times distance
W = F x d
W = 10 Newton x 5
meters
W = 50 Newton-meter
60. The unit of force
A. Newton b. kilogram c. Joule d. erg
61. The universal blood recipient
a. O b. A c. B D. AB
62. The universal blood donor
A. O b. A c. B d. AB
63. It is the statistical study of population
a. Statistics B. Demography c. Anthropology c. Population control
64. This is used for killing insects but it can be harmful
and can cause disease to people if inhaled.
A. Pesticide b. Insecticide c. Parricide d. Fungicide
65. The oldest and simplest method of preserving food using
the heat of the sun.
A. canning B. drying c.
smoking d. fermentation
66. It has definite shape and volume.
A. solid b. gas c. liquid d. plasma
67. It is the amount of space occupied by the substance.
A. volume b. mass c. air d,
cubic meter
68. What is the formula of Kinetic Energy?
a. KE = 2mv2 b. KE = 1/2m2v c. KE = 1/2mv D. KE = 1/2mv2
69. A 45kg box was moved at a distance such that the velocity
is 5m/s forward direction. What is the Kinetic Energy of the box?
A. 562.5 kg m2/s2 b. 2250 kg m2/s2 c.
112.5 kg m/s d.
5062.5 kg2 m/s
KE = 1/2mv2 KE
= 1/2 x 45 x (5)2 KE
= 1/2 x 45 x 25
KE = 1125/2 KE
= 562.5 kg m2/s2
70. What is the formula for Potential Energy?
a. PE = mvg b. PE = gdm C. PE = mgh d.
PE = mg
71. Lyndon is standing on the board one meter above the
ground and he weighs 35 kg.
What is Lyndon’s Potential Energy?
a. 36 N/M B. 343 N/M c. 35 N/M d.
35 N/M
PE = mgh , where m = mass; g = acceleration due to gravity;
and h = height
Since m = 35 kg ; h = 1 m; and g = 9.80665 m/s2 (constant at earth’s surface)
PE = 35 x 1 x 9.80665 = 343 N/M
72. Which is called “stored energy”?
a. kinetic B. potential c. gravitational d. electrical
73. Energy is the ability to do ____?
A. work b. motion c. acceleration d. power
74. The unit in which energy is measured is the ________.
a. Newton b. watt c. electron D. joule
75. It is the force of attraction that exists between all
objects in the universe.
a. friction b. inertia c. momentum D. gravity
76. If the motor boat travels 20km down a river within 4
hours, what is the boat’s velocity?
a. 16 km/h b. 15 km/h C. 5 km/h d.
1 km/h
Velocity = distance / time plus direction
V = 20/4 = 5 km/h downward
77. Matter is anything that occupies space and has ______.
a. weight B. mass c. speed d.
motion
78. The equivalent of erg in joule is____?
a. 107 B. 10-7 c.
7-10 d.
710
79. The erg is also a unit of energy or work expressed in
_______?
a. kg m2/sec2 B. g cm2/s2 c. Newton-meter d. joule
80. In the equation formulated by Albert Einstein, E = mc2 , what represents c?
a. energy of
light B. speed of light c. velocity of light d. luminosity of light
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