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Basic Science Third Term Examination Questions 2019/2020 Session – Junior Secondary School (JSS 1, JSS 2, JSS 3)




SUBJECT:    BASIC SCIENCE                                                            CLASS:  J.S.S 1

Section A:  Objectives

  1. The ability of a living thing to respond to external stimuli is (a) respiration  (b) irritability  (c) excretion  (d) growth
  2. Another name for womb is  (a) cervix  (b) hymen  (c) clitoris  (d) uterus
  3. One of these is a source of protein (a) Egg  (b) yam  (c) butter  (d) fruit
  4. Water is made up of  (a) carbon and oxygen  (b) hydrogen and oxygen  (c) carbon and hydrogen (d) hydrogen and nitrogen
  5. _________is the ability to pass out waste products  (a) irritability  (b) excretion                         (c) reproduction  (d) movement
  6. Abestor and cement are responsible for ______pollution  (a) water  (b) land  (c) Air  (d)Noise
  7. One of these is an example of non-renewable energy  (a) petrol  (b) water  (c) sun  (d) wind
  8. One of these is not an example of S.T.I  (a) gonorrhea    (b) Chlamydia  (c) Ebola (d)Syphilis
  9. Energy due to motion is  (a) electrical energy  (b) potential  (c) solar energy (d) kinetic energy
  10. In radio, electrical energy is convert to _______energy  (a) light  (b) sound  (c) mechanical  (d)potential
  11. The release of matured ovum from the ovary in female is ____(a) menstruation                       (b) conception  (c) ovulation  (d) zygote
  12. All of these are force field EXCEPT  (a) magnetic force  (b) tension  (c) gravitational force  (d)electric force
  13. All these are microscopic organisms EXCEPT  (a) spider  (b) bacteria  (c) virus  (d)fungi
  14. The energy conversion that involves in rubbing of your palms is ______(a) mechanical energy to sound energy  (b) heat energy to sound energy  (c) mechanical energy to heat               (d) sound energy to heat energy
  15. Lack of vitamin D leads to _______(a) kwashiorkor  (b) beriberi  (c) ricket  (d) sterility

Section B:  Fill in the gaps

  1. The force that opposes motion is _____________________
  2. An object thrown up tends to fall to the ground due to _________force
  3. ________________occurs where the released sperm and ovum is implanted in the uterine wall.
  4. The reproductive organ that produces and releases mature eggs is ___________________
  5. When the earth comes between the sun and the moon is called _____________________

Section C:  Theory (Attempt four questions from this section)

1a.       Explain space travel

b.         What are the four regions of atmosphere?

c.         State 2 benefits and 2 dangers of space travel

d.         What is gravity?

2.         Mention 3 effects of gravitation on objects

b.         What is satellite?

c.         Mention 3 types of satellites and give one use each.

3a.       What is teenage pregnancy?

b.         Mention 3 implications of teenage pregnancy

c.         Mention 3 people that can help a pregnant teenager

d.         List 3 implications of taking drug without doctor’s prescription in pregnancy

4.         Calcualte the work done when an object 7kg was raised to a height 10 metres.  Force of gravity is 9.8mS2

b.         Differntiate between gravitational force and magnetic force.

c.         Explain the importance of frction

d.         State the unit of the following

(i)         force                (ii)        work

5a.       Explain the stages of growth and development of foetus

b.         Identify the components of the solar system.

c.         Explain the following terms

(i)         eclipse of the sun, 

(ii)       eclipse of the moon 

(iii)      season 

(iv)      climate





SUBJECT:    BASIC SCIENCE                                                  CLASS:  J.S.S 2

Section A:  Objectives

  1. One of these is permanent change in development  (a) menstruation in female  (b) obesity  (c)menopause  (d) malnutrition
  2. All of these are factors that influence growth and development except  (a) hormone  (b)heredity  (c) nutrition  (d) size
  3. The S.I unit for power is (a) joules  (b) watts  (c) Newton  (d) metre per secs.
  4. Calculate the work done, if a force of 14N is used to drag a box through a distance of 5m  (a) 35J  (b) 70J  (c) 700J  (d) 350J
  5. The stored food in our bodies possess _______energy  (a) chemical  (b) kinetic  (c) potential (d) solar
  6. If a boy of mass 50kg drags a box through a distance of 10m.  How much work is done?       (a) 50KJ,  (b) 5KJ  (c) 500KJ  (d) 5000KJ
  7. What part of the fish enables it to swim in water?  (a) gills  (b) stream line body  (c) nose  (d) tail
  8. Animal that eats another animals is  (a) prey  (b) parasite  (c) predator  (d) nematode
  9. Desert is an example of ______habitat  (a) aquatic  (b) terrestrial  (c) ax boreal  (d) salt water
  10. All of these are factors that affect evaporation except  (a) pressure  (b) the temperature of the liquid  (c) the size of the liquid  (d) the nature of the liquid.
  11. The energy change involved when a torch battery is connected to a bulb is  (a) light energy to mechanical energy  (b) chemical energy to light energy  (c) potential energy to heat energy  (d) chemical energy to heat energy
  12. The method of heat transfer in liquid is  (a) conduction  (b) condensation  (c) convection  (d) radiation
  13. When someone has had sexual intercourse before, makes a decision to abstain from sex until later in life is _____abstinence   (a) delayed  (b) life long  (c) periodic  (d) secondary
  14. Agrochemical is used by  (a) pharmacists  (b) cosmetologist   (c) farmers  (d) painters.
  15. One of these is used to make petroleum jelly  (a) diesel oil  (b) natural gas  (c) lubricating oil wax  (d) bitumen

Section B:  Fill in the gap

  1. The method through which heat is transferred through space is ________________
  2. ____________is a method of drug use
  3. A thick dark viscous liquid is _______________________
  4. ____________is used to make protective coatings for road surfaces
  5. HIV can be transmitted to baby from the mother through ____________________

Section C: Theory (Answer four questions from this section)

1a.       What is heat flow?

b.         List 2 insulators

c.         Explain the three methods of heat transfer

d.         Give one illustration of one of the method.

2a.       Mention 2 importance each of breast feeding to the mother and baby.

b.         Mention 2 prevention of HIV

c.         Explain abstinence

d.         Explain the four types of abstinence

3a.       Give 2 reason why adolescents engage in premarital sex?

b.         Who do you need to abstain from premarital sex?  Give 2 reasons

c.         Define chemical

d.         Explain the classes of chemical

4a.       State 3 safety measures when using chemicals

b.         Mention 3 methods of drug abuse

c.         Explain 2 social risk factors in drug abuse

5a.       Explain crude oil refining

b.         State 3 products of a typical fractional distillation of crude oil and their uses

c.         Mention 3 states in Nigeria where oil refineries are located.

d.         Enumerate the importance of crude oil and petrochemicals to Nigeria.





SUBJECT:    BASIC SCIENCE                                                CLASS:  J.S.S 3

Section A:  Objectives

  1. The three states of matter are (a) atom, electron and proton  (b) gas vapour and solid             (c) gas, liquid and solid  (d) solid, water and gas
  2. The part of the eye on which image of an object is formed is called the  (a) cornea  (b) iris  (c) lens  (d) retina
  3. Which of the following is an electric conductor?  (a) cloth  (b)  copper  (c) glass (d) plastic
  4. The muscles in the upper arm are called (a) biceps and forceps  (b) biceps and triceps                (c) tibia and fibula (d) tibia and biceps
  5. Which of the following metals is the least reactive in the activity series?  (a) Ca  (b) Cu             (c) K  (d) Mg
  6. Which of the following is not a metal?  (a) zinc  (b) calcium  (c) carbon  (d) sodium
  7. Which of the following vitamins if deficient leads to sterility?  (a) B  (b) C  (c) D  (d) E
  8. The circulatory system of the human body carries mainly  (a) fats and oil  (b) blood                            (c) hemoglobin  (d) water
  9. The total number of atoms in four molecules of hydrogen is  (a) 2  (b) 8  (c) 12  (d) 6
  10. Which of these is respiratory disease?  (a) asthma  (b)chicken pox  (c) cholera  (d)typhoid
  11. Which of these particles make up the nucleus of an atom  (a) electrons and neutrons  (b)neutrons and protons  (c) protons  (d) electrons and protons
  12. Which of these is a gland?  (a) spinal cord  (b) pituitary  (c) cerebellum  (d) olfactory lobes
  13. The following are parts of the brain except  (a) cerebellum  (b) cerebrum  (c) olfactory lobes  (d) spinal cord
  14. Which of the following compound is called trioxinitrate  (v) acid?  (a) HCI  (b) HNO3                       (c) H2 SO4  (d) NaNO3
  15. The reactioin between a base and an acid is generally described as  (a) reduction                   (b) neutralization  (c) corrosion  (d) hydrolysis.

Section B:  Fill in the Gaps

  1. The process of heat transfer in an iron rod is known as ______________________
  2. The chemical name for common salt is _____________________________
  3. The male sex cell is _________________
  4. The formula for Hydrogen tetraoxo sulphate (vi) is ___________________
  5. The body frame work of the human body is referred to as ________________system

Section C (Theory):  Answer 4 questions from this section

1a.       What is an acid?

b.         List 3 properties of an acid

c.         Give the formula of the following

(i)         Hydrochloric acid

(ii)        Sodium chloride

d.         What is P.H of a substance?


Solution i ii iii iv v
P.H values 2 3 5 7 10

i.          Which of the above solution is most basic?

ii.         Which one is likely to be water?

2a.       What do you understand by the term

(i)         Atomic number  (ii) Mass number?

b.         List 3 media through which sound travels

c.         Define echo

d.         Define the following terms:

(i) (a) Transparent object  (b) Opaque object

e.         State the mode of transfer of heat in the following

(i)         sun       (ii) water

3.         Define radioactivity

b.         Mention the 3 types of radiation, the symbols and one property each

c.         State 2 uses of radioactivity

d.         Mention 1 danger of radioactivity

4a.       What is weather?

b.         List 3 types of weather

c.         State 3 factors that affect the weather condition

d.         Mention 3 radioactive elements.

5a.       Mention 3 consequences of deforestation

b.         What are the four layers of the atmosphere?

c.         Explain gravity

d.         Mention 2 benefits of space.


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