Showing posts with label als science reviewer. Show all posts
Showing posts with label als science reviewer. Show all posts

Saturday, February 6, 2021

ALS Elementary A&E Practice Test – SCIENCE

 Choose the letter of the correct answer.


1. Science is the study of _________.

A. living things

B. the universe

C. humans

D. nature

 

2. Does snail has a backbone?

A. Yes, because it is a vertebrate.

B. Yes, because it is an invertebrate.

C. No, because it is a vertebrate.

D. No, because it is an invertebrate.

 

3. What is mass?

A. It represents the amount of matter in a particle or object.

B. It is an object that shows how much weight it has.

C. It is the same as weight.

D. It represents how much space it occupies.

 

4. Muscles work _______.

A. on their own

B. in pairs

C. in threes

D. in fours

 

5. Merlyn puts a piece of ice on a glass of water. The ice floats. Why?

A. Because of buoyancy

B. Because of surface tension

C. Because ice is less dense than the water

D. Because ice is denser than the water

 

6. Which of the following is an example of a producer in an ecosystem?

A. grass

B. mushroom

C. earthworm

D. air

 

7. Dinosaurs are commonly grouped under __________.

A. mammals

B. amphibians

C. reptiles

D. primates

 

8. What is the darkest part of the shadow?

A. umbra

B. penumbra

C. antumbra

D. hyperumbra

 

9. Jenny put some mothballs in her closet. After few months, they disappear? What process is involved?

A. Evaporation

B. Condensation

C. Sublimation

D. Liquefaction

 

10. Jeremy lacks Vitamin E. What condition will he get later on?

A. Rickett

B. Scurvy

C. Pellagra

D. Anemia

 

11. What simple machine is used in a flagpole?

A. wheel and axle

B. pulley

C. inclined plain

D. screw

 

12. Plants use the energy in sunlight to convert CO2 and water to sugar and oxygen. This process is called ______.

A. cellular respiration

B. food cycle

C. photosynthesis

D. osmosis

 

13. A blue litmus paper is dipped in a glass of liquid. The paper turned red. The liquid in the glass is _____.

A. acidic

B. basic

C. neutral

D. alkaline

 

14. Which of the following is NOT a fungus?

A. yeast

B. mushroom

C. algae

D. mold

 

15. It is a relationship in which two organisms benefit from each other.

A. Parasitism

B. Mutualism

C. Commensalism

D. Commercialism

 

16. Which of the following is an abiotic component in an ecosystem?

A. fish

B. fungi

C. air

D. grass

 

17. Which of the following materials is a good thermal conductor?

A. styrofoam

B. glass

C. leather

D. metal

 

18. What happens when the Earth is between the sun and the moon?

A. solar eclipse

B. lunar eclipse

C. full moon

D. blue moon

 

19. A glass is filled with water, lemon juice, sugar, and ice. What is the solute in this concoction?

I. water

II. lemon juice

III. sugar

IV. ice

A. I only

B. III only

C. II and III

D. IV only

 

20. A bottle of perfume is opened in a room, the smell of its vapor spreads in the entire room due to _______.

A. diffusion

B. osmosis

C. evaporation

D. condensation

 ANSWERS

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Sunday, November 12, 2017

ALS A&E Sample Test/Reviewer - Science - 3

I do hope that this reviewer will help you in your ALS A&E Exam:


Science Reviewer

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                        c. 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 contro
l
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/s      b. 2250 kg m2/s 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/s                    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


----------------------o0o-----GOOD LUCK -----o0o ---------------------- -----

Saturday, November 11, 2017

ALS A& E Science Practice Test/ Reviewer - 2

Science Reviewer

Select the letter of the best answer.



1. What did Robert Hooke use to view cells?
          a. cork
          b. fuzz
          c. saliva
          d. tree bark

2.  The three basic needs of living things are the following except:
          a. people
          b. air
          c. water
          d. warmth
3. Which of the following is not part of the cell theory?
a. All living organisms are composed of three or more cells.
b. The cell is the basic unit of structure and organization in organisms.
c. Cells arise from pre-existing cells.
d. Some living organisms have only one cell.

4. With the continual improvements made to _________, cell biology was made possible in the 17th century.

          a. microscope
          b. telescope
          c. stethoscope
          d. periscope

5. Cell theory was formulated in 1839. The following scientist did not contribute to the cell theory:

          a. Robert Hooke
          b. Matthias Schleiden
          c. Theodor Schwann
          d. Rudolf Virchow

6. The following are characteristics of living things except one:
          a. Living things need oxygen to keep alive.
          b. Living things use energy for maintenance and growth.
          c. Living things grow and reproduce other living things.
          d. Livings things response and adapt to their environment.
7. Which one of these is not considered a good attribute of a hypothesis?
          a. complexity
          b. consistency
          c. power of prediction
          d. closest to observable things

8. A group of cells that perform a common function is called a/an _______.

          a. tissue
          b. organ
          c. digestive system
          d. organism

9. All are characteristics of bacteria except:

          a. Bacteria have only one method of reproduction through binary fission.
          b. The cells of bacteria do not have nuclei.
          c. Bacteria are harmful and also beneficial to man.
          d. Bacteria are single cellular microscopic organisms.

10. Dry ice is frozen _________.

          a. carbon dioxide
          b. water
          c. oxygen
          d. hydrogen

11. Aling Naty put mothballs inside their closets.  After several months, she discovered that all of them were gone. This physical process is called___.

          a. sublimation
          b. condensation
          c. digestion
          d. evaporation

12. Which of these cannot be considered a step in scientific method?

          a. Using strategies in playing Dota.
          b. Gathering reference books on how typhoon is formed.
          c. Observing that a needle floats on water.
          d. Testing what happens when sugar and water are mixed together.

13. When a color-blind man marries a woman who have no trace of the condition, which of the following is correct.

          a. Their baby girl will be a carrier.
          b. Their baby girl will be color-blind.
          c. All their children will be color-blind.
          d. Their baby boy will be color blind.

14. A fertilized egg is called a/an _________.

          a. zygote
          b. gamete
          c. ovum
          d. ovulation

15. The chemical symbol of an ordinary salt is_____.

          a. NaCl
          b. H2O
          c. H2SO4
          d. CO2

16. Mang Delfin planted an albino corn seeds in an open field with good irrigation. After one week, the plants grew to about 1 foot but eventually died in the following days?

          a. The plants cannot produce their own foods.
          b. The pests killed the plants.
          c. Too much sunlight killed the plants.
          d. Mang Delfin did not put enough fertilizer on the soil.

17. The following events are due to condensation except one:

          a. The clothes dried in an open space.
          b. Having a cold soda on a hot day, the can “sweats.”
          c. The mirror in the bathroom during a shower becomes foggy.
          d. The clouds are formed.

18. New born baby has fewer bones than an adult.

          a. False
          b. True
          c. Sometimes
          d. It depends.

19. A monsoon wind that comes from the southwest.

          a. Habagat
          b. Tropical Easterlies
          c. Amihan
          d. Doldrum

20. The earth started revolving around the sun on 01 January 2017. When it reaches to its starting point, the date will be approximately______.

          a. 31 December 2017
          b. 02 January 2018
          c. 02 January 2017
          d. 31 January 2017

21. They are blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.

          a. Arteries
          b. Capillaries
          c. Veins
          d. Haemoglobin

22. What happens when the moon is between the earth and the sun?

          a. Solar eclipse
          b. Tidal waves
          c. Lunar eclipse
          d. Earthquake

23. The metal which is considered the best conductor of electricity.

          a. Silver
          b. Gold
          c. Aluminum
          d. Copper

24. Which of the following is not an inverse relationship?

          a. Pressure and Temperature of gas if Volume is constant
          b. Savings and Expenditure if Income is constant
          c, Resistance and Current if Voltage is constant
          d. Speed and Time if Distance is constant

25. It is the nearest star to the earth.

          a. Sun
          b. Leo
          c. Satellite
          d. Moon

26. A needle placed on a glass of water floats because of______.

          a. surface tension
          b. tensile strength
          c. flotation
          d. buoyancy

27. Evolution by natural selection of organisms is possible if all but one is present.

          a. supremacy
          b. variety
          c. differential reproduction
          d. heredity

28. If 4 balloons are filled with hydrogen, beryllium, helium, and lithium. The balloon which floats higher is filled with_____.

          a. Hydrogen
          b. Beryllium
          c. Helium
          d. Lithium

29. It is the most abundant gas in the atmosphere.

          a. Nitrogen
          b. Carbon dioxide
          c. Oxygen
          d. Argon

30. The longest and the strongest bone in the human body.

          a. femur
          b. skull
          c. humerus
          d. pelvis

31. Which of the following statement is true?

          a. Each person has two copies of each gene, one inherited from each parent.
          b. In humans, genes are of the same size.
          c. DNA is made up of genes.
          d. Each gene contains many chromosomes

32. One of the following statements is not correct. Which one?

          a. Genotypes are internal visible characters such as height, color of eyes and dimple.
          b. The transfer of characters from parents to offspring is called heredity,
          c. Traits were passed on independently of others from parents to offspring.
          d. There are dominant and recessive traits passed on randomly from parents to offspring.

33. Which of the following animals is not a mammal?

          a. shark
          b. whale
          c. dolphin
          d. seal

34. On a stormy day, you see the lightning first before you hear the thunder. This is explained by one of the following:

          a. Light travels faster than sound.
          b. You see the lightning first because it is very bright.
          c. Your eyes are sharper than your ears.
          d. The sound of the storm is louder than the sound of the thunder.

35. A glass full of water is placed inside a small bowl. A golf ball is submerged on the glass. What can you conclude about the displaced water?

          a. Its volume is equal to the volume of the golf ball.
          b. Its weight is equal to the volume of the golf ball.
          c. Its weight is equal to the weight of the golf ball.
          d. Its volume is equal to the weight of the golf ball.

36. “For every action, there is an equal and opposite reaction.” This law is attributed to which scientist below:

          a. Sir Isaac Newton
          b. Archimedes
          c. Gregor Mendel
          d. Albert Einstein

37. The speed of light which is approximately 186,300 miles per second or 300,000 kilometers per second, is first estimated by this Danish astronomer.

          a. Ole Roemer
          b. Galileo Galilei
          c. Nicholas Copernicus
          d. Johannes Kepler

38. The stapes, the smallest and stirrup-shaped bone, is located in which part of the human body?

          a. Ear
          b. Nose
          c. Groin
          d. Eye

39. What is not a greenhouse effect?

          a. It is the result of the lessening of greenhouse gases in the atmosphere due to deforestation and burning up of fossil fuel.
          b. it is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.
          c. It increases the temperature of the earth by trapping heat in our atmosphere.
          d. It refers to circumstances where short wavelengths of visible light from the sun pass through a transparent medium and are absorbed, but the longer wavelengths of the infrared re-radiation from the heated objects are unable to pass through that medium.

40. When your tumor is benign, it means that it is_____.

          a. non-cancerous
          b. cancerous
          c. moving in other parts of the body
          d. reproducing rapidly

41. David has three kilos of gold on the moon while Ernest has three kilos of gold on earth. Who has more gold?

          a. David
          b. Ernest
          c. Both of then have the same amount of gold.
          d. It depends on how long David has been on the moon

42. Raha Moharrak, the first Saudi woman to climb Everest, is trying to boil water for rice at base camp. How should she alter her recipe at a high elevation? (Credit to Melissa Hirsch of Gill, Massachusetts)

a. She should simmer the rice for more time. Because air pressure is lower at high altitudes, water boils at a lower temperature.
b. She should simmer the rice for less time. Because air pressure is lower at high altitudes, water boils at a lower temperature.
c. She should cook the rice at a lower temperature. Because air pressure is lower at high altitudes, water boils at a lower temperature.
d. She should cook the rice at a higher temperature. Because air pressure is lower at high altitudes, water boils at a lower temperature.

43. Table salt is made from:  (Credit to Lisa Paschall of NY, NY).

          a. a highly reactive metal and a toxic gas
          b. two unreactive nonmetals
          c. two highly reactive metals
          d. two toxic gases
         
44. Which of the following conditions on Mars would be the first to kill a human who is unprotected and unassisted by life support? (Credit to Edmund Smith of Hartford, Connecticut)

a. Low air pressure.
b. Colder than Antarctic temperatures.
c. High CO2 atmosphere.
d. Excess solar radiation due to a missing magnetic field.

45. O+ blood can be transfused into people with which blood types?

          a. Any blood type that is RH+
          b. Any blood type
          c. Only other O+ blood type
          d. Any blood type that is RH-

46. When a helium nucleus is being ejected from the nucleus of an atom, ______ took place.

          a. alpha decay
          b. beta  decay
          c. gamma decay
          d. electromagnetic radiation

47. The 4 basic forces of nature that govern the interaction of matter and energy are:

          a. gravitational, electromagnetic, strong, weak
          b. electricity, gravity, magnetism, thermodynamics
          c. kinetic, potential, gravitational, inertia
          d. gravitational, volcanic, electrodynamics, radiation

48.  6.02 x 1023 represents which number?

          a. Avogadro’s number
          b. Euler’s function
          c. speed of sound
          d. Hardy-Ramanujan number

49.  The part of the brain that controls involuntary functions such as breathing and heart rhythms.

          a. Medulla oblongata
b. cerebellum
          c. frontal lobe
          d. occipital lobe

50. Natural selection is not the only process that effects the survival of certain alleles. What is the particular genetic effect that states certain alleles will be expressed by chance fluctations?

          a. genetic drift
          b. mutation
          c. evolution
          d. speciation


--o0o—GOOD LUCK—o0o--