[Science Part 1] Gen Ed LET Reviewer

Here is Part 1 of our Gen Ed Science reviewer for the upcoming Licensure Exam for Teachers (LET).

This is Part 1 of our Science Gen Ed reviewer. This has 50 multiple-choice questions with the answer key provided at the bottom.

Recommended reading:
→ 5 Researched-Based Techniques to Pass Any Exam
→ (13 Tips From Repeaters) How to Pass LEPT the First Time
→ How to Remember Better: A Study Tip

Gen Ed Science reviewer

1. These are living things that use sunlight, chlorophyll, water, and carbon dioxide to produce food.
A. Autotrophs
B. Consumers
C. Heterotrophs
D. Food chain

2. It is described as a lifeline of the body. It is the body’s “pick up” and delivery system.”
A. blood
B. nervous system
C. circulatory system
D. heart

3. It carries the oxygen-rich blood to the head, arms, chest, and down to the waist and the legs.
A. heart
B. ventricles
C. aorta
D. arteries

4. They are the transmitters of messages from the different parts of the body to the brain and vice versa.
A. spinal cord
B. neurons or nerve cells
C. brain
D. arteries

5. Which part of the brain controls the following activities: breathing, blood pressure, heart rate, and alertness?
A. brainstem
B. hypothalamus
C. cerebrum
D. spinal cord

6. Refers to a sequence of organisms in a community that constitutes a feeding chain.
A. photosynthesis
B. ecosystem
C. consumers
D. food chain

7. Is a group of interacting plants, animals, and human in a particular area?
A. ecological community
B. environment
C. living organism
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 Niño
B. Greenhouse effect
C. Deforestation
D. Weather disturbance

9. The Earth’s shield against the sun’s harmful radiation.
A. Atmosphere
B. Air
C. Ozone layer
D. Forest

10. The use of products 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. Coral 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 sand 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 off the ground
C. Unbalance electrical reactions in the air
D. Cold and warm air mixing in the atmosphere

15. What is heat haze?
A. A reflection caused by pollutants in the air
B. A distorted image resulting from the bending of sun’s light rays by changes in air temperature
C. A movement of warm air over a vast expanse of land
D. Caused by extremely high temperature common in desert areas.

16. What sort of rock formation do the world’s greatest mountain ranges consist of?
A. magma
B. chalk deposit
C. fold eruptions
D. deforestation

17. What is the force that wears down mountains?
A. Earthquake
B. Erosion
C. Volcanic eruptions
D. Deforestation

18. How are volcanic islands formed?
A. Collision of two oceanic plates
B. Cooling of lava by seawater
C. Volcanic eruptions
D. Accumulations of corals

19. When the Theory of plate Tectonic was generally accepted?
A. 1900’s
B. 1930’s
C. 1950’s
D. 1960’s

20. The weathering away of rocks by water, wind, and ice:
A. Denudation
B. Erosion
C. Volcanic rock
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 and Ovum
B. Testosterone
C. Chromosomes
D. Red and white blood cells

23. The unit of measurement of energy in a given amount of food.
A. Pound
B. Kilo
C. Olfactory system
D. Calorie

24. The growth of roots towards water is an example of?
A. Chemotropism
B. Geotropism
C. Hydrotropism
D. Phototropism

25. DNA means
A. Data nurturing analysis
B. Deoxytribonucleic acid
C. Deoxyribonucleic acid
D. Deotrixylnucleic acid

26. The control center of the body is the?
A. Heart
B. Lungs
C. Brain
D. kidney

27. Which part of the body is connected with the sense of touch?
A. Nose
B. Skin
C. Ear
D. Eyes

28. Which of the following is not a sense organ?
A. Eyes
B. Ears
C. Nose
D. Teeth

29. A Barometer is used to measure
A. Wind direction
B. Rainy water
C. Temperature
D. Atmospheric pressure

30. Which of the following is the smallest bird in the world?
A. Hummingbird
B. Robin
C. Curlew
D. Greenfinch

31. Which star is nearest to the sun?
A. Proxima centauri
B. Sirius
C. Alpha centauri
D. Spole star

32. Which is the fastest animal on land?
A. Leopard
B. Cheetah
C. Deer
D. Kangaroo

33. Who build the first telescope?
A. Galileo
B. Isaac Newton
C. Alexander Fleming
D. Benjamin Franklin

34. Henry Ford invented the first
A. Television
B. Telephone
C. Motor Car
D. Refrigerator

35. Jaundice is an infectious disease, which spreads through
A. Air
B. Soil
C. Water
D. Clothes

36. The telephone was invented by?
A. JL Baird
B. AG Bell
C. Thomas A. Edison
D. Marconi

37. Wright brothers are inventors of the?
A. Balloon
B. Bicycle
C. Aeroplane
D. Television

38. Which planet is closest to the sun?
A. Mars
B. Venus
C. Mercury
D. Jupiter

39. The most poisonous plant is
A. Pitcher plant
B. Dodder plant
C. Castor bean plant
D. Mangrove plant

40. Scientists who study the weather are known as?
A. Seismologists
B. Meteorologists
C. Astronomer
D. Anthropologist

41. Which of the following birds cannot fly?
A. Emu
B. Rheas
C. Ostrich
D. All of these

42. Who invented the sewing machine?
A. Elias Howe
B. Murray Spangler
C. Thomas Martin
D. Leslie Large

43. Who invented the fountain pen?
A. Lewis Waterman
B. Lazlo Biro
C. C Clarke
D. Jhon Walker

44. Parkinson’s disease is a brain disease that is characterized by loss of nerve cells in which part of the brain?
A. Cerebrum
B. Cerebellum
C. Cerebral Cortex
D. Brain stem

45. Symbiosis is defined by biologists as individuals of different species living together in intimate association, regardless of whether the association is harmful, neutral, or beneficial.
All of the following pairs are examples of symbiosis EXCEPT:
A. ants and tapeworms
B. human and tapeworms
C. cats and mice
D. dogs and cats

46. Which of the following statement about atomic structure is NOT right?
A. All atoms of the same atomic numbers are atoms of the same element.
B. An atom can gain or lose electrons without changing its charge.
C. Atoms are mostly empty spaces.
D. Most of the mass of the atom is concerned with its nucleus.

47. Which of the following statement is TRUE of nuclear fission?
A. The energy process is identical to that which occurs in the sun.
B. Energy is obtained by getting the nucleus of the atoms to break up or split.
C. Matter from the lighter atoms is changed into energy.
D. Scientists can combine lighter atoms to form heavier atoms.

48. All of the following statements about the routinary use of pesticides are TRUE, EXCEPT:
A. Due to the widespread use of DDT, a new type of housefly emerged.
B. It results in the evolution of exciting new types of organisms.
C. It may not only kill the intended insects but also those that feed on them.
D. Pesticides tend to become progressively less effective as the organisms become immune.

49. The skull of a person increases in size rapidly during _____.
A. puberty
B. babyhood
C. adolescence
D. adulthood

50. Apparently, the loss of weight of objects immersed in a fluid is due to ______.
A. Archimedes principle
B. Specific gravity
C. Newton’s theory
D. Buoyant force

Answer key

1. A11. B21. B31. A41. D
2. C12. B22. A32. b42. A
3. D13. A23. D33. A43. A
4. B14. B24. C34. C44. C
5. A15. A25. C35. C45. D
6. D16. C26. C36. B46. B
7. A17. B27. B37. C47. B
8. B18. A28. D38. C48. B
9. C19. D29. D39. C49. C
10. D20. B30. A40. B50. D