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JSS Two Basic Science OBJ Question (First Term)

Adesina OlalekanBy No Comments20 Mins Read
Science

Basic Science for JSS Two builds on the foundation from JSS One by introducing deeper topics such as air, water, force, solar energy, and the human body. These objective questions help students test their understanding and prepare effectively for school exams and BECE assessments.

1. The following substances are matter EXCEPT      

A. Air
B. book
C. nothing
D. stone      

                  

      

2. Which of the following groups are states of matter?      

A. gaseous and liquid only
B. gaseous and solid only
C. gaseous, liquid and solid
D. gas only      

                  

      

3. Growth is limited only in……………….      

A. mango
B. cashew trees
C. animals
D. cocoa trees      

                  

      

4. Which of the following organs enable fish to swim?      

A. fins and tail
B. gill
C. eye
D. belly      

                  

      

5. The ability to do work is………………..      

A. heat
B. work done
C. energy
D. light      

                  

      

6. Which of the following is not a natural source of energy?      

A. the sun
B. wood
C. stove
D. wind      

                  

      

7. Which of the following substances is not a form of energy?      

A. heat
B. sound
C. sun
D. light      

                  

      

8. The energy reaching us from the sun is in the form of light and…………………….      

A. ray
B. heat
C. darkness
D. light      

                  

      

9. When a body is in motion, which energy is converted to kinetic energy?      

A. potential
B. light
C. kinetic
D. chemical      

                  

      

10. These are man-made sources of energy EXCEPT      

A. car batteries
B. generators
C. sun
D. rechargeable lamps      

                  

      

11. An electric pressing iron converts electrical energy to ……………………  energy?      

A. mechanical
B. potential
C. heat
D. sound      

                  

      

12. Striking a match, chemical energy is converted to…………….      

A. light and heat
B. electrical and heat
C. light and chemical
D. electrical and light      

                  

      

13. Which of the following is not a method of drug abuse use?      

A. inhaling
B. smoking
C. drinking
D. vomiting      

                  

      

14. The kind of place where plants and animals live is called…………………..      

A. ecosystem
B. habitat
C. aquatic area
D. building      

                  

      

15. ………………………is the number of a group of organisms of the same kind living in the same place.      

A. population
B. habitat
C. community
D. population density      

                  

      

16. ………………………is equal to the size of the population divided by the area of land        

A. community
B. habitat
C. population
D. population density      

                  

      

17. The following are abiotic factors in a pond EXCEPT      

A. temperature
B. spirogyra
C. amount of water
D. dissolved salt      

                  

      

18. Animals that feed only on other animals are called…………………..      

A. herbivores
B. carnivores
C. omnivores
D. lions      

                  

      

19. A group of different organisms living and interacting in the same place is……………….      

A. density
B. habitat
C. population
D. ecosystem      

                  

      

20. The instrument used to determine population density is called……………….      

A. quadrat
B. net
C. metre rule
D. square      

                  

      

21. Growth can be defined as………………….      

A. decrease in height
B. increase in weight
C. increase in size
D. decrease in size      

                  

      

22. Developmental changes in living things are temporary and…………………      

A. good
B. bad
C. beautiful
D. permanent      

                  

      

23. Which of the following groups are developmental stages in human beings?      

A. infancy and adulthood
B. infancy, adolescence and adulthood
C. infancy and adolescence
D. infancy only      

                  

      

24. Sunlight is used by …………………… to prepare food?      

A. plants
B. animals
C. insects
D. wood      

                  

      

25. The best infant’s milk is……………………..      

A. tin milk
B. breast milk
C. rice
D. beans      

                  

      

26. The primary source of Earth’s energy is………………………..      

A. plant
B. sun
C. dam
D. wood      

                  

      

27. Sewage is a waste material in …………form?      

A. gaseous
B. dry
C. solid
D. liquid      

                  

      

28. The best way of disposing of sewage is…………………….      

A. water closet
B. bush
C. river
D. pit toilet      

                  

      

29. The following diseases are water-borne EXCEPT      

A. cholera
B. diarrhoea
C. typhoid
D. malaria      

                  

      

30. Tse-tsefly is a vector of which of these diseases?      

A. night blindness
B. river blindness
C. sleeping sickness
D. typhoid      

                  

      

31. The bony framework which gives support or rigidity to vertebrate animals is called……..      

A. the skull
B. the bone
C. the skeleton
D. the legs      

                  

      

32. The flexible connective tissue found between one vertebra and the other is known as ………      

A. Tendons
B. cartilage
C. muscle
D. articular facet      

                  

      

33. The type of joint that allows gliding or sliding of bones over one another is called………….      

A. pivot joint
B. ball and socket joint
C. hinge joint
D. gliding or sliding joints      

                  

      

34. Ball and socket joints are found in ………..      

A. wrist and ankle
B. elbow, fingers, toes and knees
C. shoulder and hip
D. hip and elbow      

                  

      

35. Muscles are attached to the bones by ……….      

A. ligaments
B. cartilages
C. tendons
D. contracting of muscles      

                  

      

36. Which of these bones protects the brain?      

A. rib
B. skull
C. sternum
D. pelvic girdle      

                  

      

37. ……… serves as a lubricant in joints during movement?      

A. synovial fluid
B. synovial capsule
C. tendons
D. ligament      

                  

      

38. Which of the following is not involved in breathing?      

A. nose
B. trachea
C. bronchi
D. liver      

                  

      

39. During the process of respiration which of these gases is used to oxidize food to produce energy      

A. oxygen gas
B. carbon(IV)oxide
C. nitrogen
D. water vapour      

                  

      

40. The following problems are connected with breathing EXCEPT?      

A. asthma
B. pneumonia
C. scurvy
D. pulmonary tuberculosis      

                  

      

41. The main respiratory organ of human beings is the ………..      

A. lungs
B. nose
C. trachea
D. mouth      

                  

      

42. The mechanism of respiration involves inspiration and ……… of air.      

A. excretion
B. inhaling
C. expiration
D. taking in      

                  

      

43. Our rooms and houses must be well ventilated to avoid ……….      

A. smoke
B. air
C. suffocation
D. headache      

                  

      

44. The process by which dissolved and absorbed food materials are carried to all parts of the body is termed as ……….      

A. respiration
B. circulation
C. reproduction
D. excretion      

                  

      

45. Which of the following is not a constituent of blood?      

A. red blood cell
B. white blood cell
C. plasma
D. vein      

                  

      

46. These are materials which are transported by living organisms EXCEPT      

A. brain
B. salt
C. water
D. oxygen      

                  

      

47. The blood vessels and the heart make up the ………      

A. digestive system
B. respiratory system
C. circulatory system
D. blood      

                  

      

48. The liquid part of the blood is called………      

A. red blood cells
B. the plasma
C. platelets
D. water      

                  

      

49. The red blood cell contains………….which carries oxygen around the body of living organisms.      

A. cell
B. haemoglobin
C. water
D. food      

                  

      

50. Which part of the blood fight against diseases      

A. the red blood cell
B. the white blood cell
C. plasma
D. blood platelets      

                  

      

51. Which of these constituents of blood is manufactured in the bone marrow?      

A. plasma
B. platelet
C. antibody
D. red blood cells      

                  

      

52. Which of the following is not a blood group?      

A. group O
B. group AO
C. group A
D. Group B      

                  

      

53. Alimentary canal parts, through which food must pass before going out of the body include the following except      

A. the liver
B. the gullet
C. the stomach
D. the anus      

                  

      

54. The process of breaking down food materials into smaller particles which can be absorbed into the body is termed as……………..      

A. ingestion
B. egestion
C. Digestive system
D. Digestion      

                  

      

55. One of these enzymes contained in saliva is called…………..      

A. amylase
B. ptyalin
C. rennin
D. trypsin      

                  

      

56. Which of these groups Are the most important enzymes contained in pancreatic juice?      

A. maltose, Amylopsin and trypsin
B. maltose, lipase and trypsin
C. Erepsin, lipase and trypsin
D. lipase, trypsin and amylopsin      

                  

      

57. The process of passing out undigested and unabsorbed food material from the alimentary canal through the anus as a solid is called…………….      

A. circulation
B. ingestion
C. egestion
D. digestion      

                  

      

58. The kidney as an excretory organ removes……………… from the body.      

A. salt
B. water
C. urine
D. sweat      

                  

      

59. Lungs as an excretory organ excretes…………….      

A. urine
B. sweat
C. carbon(IV)oxide
D. urea      

                  

      

60. If a person’s urine contains much sugar, the person is likely to be suffering from      

A. headache
B. diabetes
C. malaria
D. hypertension      

                  

      

61. The study of charged particles at rest is called      

A. Electrostatics
B. Electrodynamics
C. Electrolysis
D. Electrodes      

                  

      

62. The process of leveling valleys and filling up hills is called      

A. Stumping
B. Grading
C. Paving
D. Digging      

                  

      

63. Electricity is transmitted at a frequency of      

A. 60 Hertz
B. 88 Hertz
C. 50 Hertz
D. 108 Hertz      

                  

      

64. The process of removal of the remaining tree stump as well as the root is known as      

A. Digging
B. Cutting
C. Pulling
D. Stumping      

                  

      

65. After generation, electricity is fed into a step-up transformer to raise the voltage to      

A. 11000v
B. 240v
C. 50v
D. 330000v      

                  

      

66. Electricity-generating stations are otherwise known as      

A. Substation
B. Turbines
C. Power plants
D. Generators      

                  

      

67. Long-distance transmission requires      

A. Low voltage and high current
B. High voltage and low current
C. Low voltage and low current
D. High voltage and high current      

                  

      

68. Which of the following is not a setting-out material?      

A. Hoe
B. Pegs
C. Plumb
D. Hammer      

                  

      

69. All the following are the requirements to be considered in sorting for high-voltage transmission cables except      

A. They should have high electrical resistivity
B. They should be very strong
C. They should have high electrical conductivity
D. They should be non-corrosive      

                  

      

70. The two types of electricity are      

A. Static and current electricity
B. Static and charge electricity
C. Current and series electricity
D. Series and parallel electricity      

                  

      

71. The output voltage of an alternating current is in ………      

A. Negative waveform
B. Sine waveform
C. Positive waveform
D. Oscillating waveform      

                  

      

72. C.R.O means      

A. Cation Ray Oscillator
B. Cathode Ray Oscilloscope
C. Current Ray Oscilloscope
D. Cathode Ray Oscillation      

                  

      

73. All the following are cooling appliances except      

A. Refrigerator
B. Electric fan
C. Gas cooker
D. Air conditioner      

                  

      

74. Electricity is stepped down at the substations to about      

A. 220v
B. 175000v
C. 11000v
D. 330000v      

                  

      

75. The topsoil is otherwise called      

A. levelling soil
B. paved soil
C. Road soil
D. Vegetable soil      

                  

      

76. The procedure by which the foundation plan of the building expressed on the drawing paper is laid out on the ground is known as      

A. Site preparation
B. Pegging
C. Surveying
D. Setting out techniques      

                  

      

77. All the following are mechanical plants used for site preparation except      

A. Bulldozer
B. Power shovel
C. Grader
D. Machete      

                  

      

78. Electric charges are measured in      

A. Volts
B. Ampere
C. Coulomb
D. Ohm      

                  

      

79. A law that relates the voltage, current and resistances present in a circuit is known as      

A. Hooke’s law
B. Ohm’s law
C. Snell’s law
D. Faraday’s law      

                  

      

80. A device which converts alternating current to direct current is called      

A. Rectifier
B. Converter
C. Filter
D. amplifier      

                  

      

81. Which of the following is not a hand tool used for site preparation?      

A. Chain saw
B. Axe
C. Hoe
D. Grader      

                  

      

82. A person who designs a building to specification is referred to as      

A. A contractor
B. A firm
C. An architect
D. A client      

                  

      

83. Frequency modulation (FM) has a broadcast frequency ranging from      

A. 174 to 216 MHz
B. 88 to 108MHz
C. 44 to 88MHz
D. 3.2 to 24MHz      

                  

      

84. Which of the following is not a simple maintenance method?      

A. Breaking
B. Cleaning
C. Washing
D. Greasing      

                  

      

85. Electric current is measured in      

A. Ampere
B. Volt
C. Ohms
D. Coulomb      

                  

      

86. E.m.f means      

A. Electrostatic force
B. Electromotive force
C. Electricity force
D. Electromagnetic force      

                  

      

87. A component that offers resistance is known as      

A. Capacitor
B. Inductor
C. Resistor
D. Transistor      

                  

      

88. The process by which electricity is passed from the power station to the substation is known as electricity      

A. Generation
B. Distribution
C. Utilization
D. Transmission      

                  

      

89. A person who wants to own a house is known as      

A. An architect
B. A contractor
C. A firm
D. A client      

                  

      

90. The formal study of charged particles at rest is known as      

A. Electrodynamics
B. Electrolysis
C. Electrostatics
D. Electrodes      

                  

 

 

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