Third Term Examination Basic Science JSS 3 (Basic 9) – Mock Exam Questions

BASIC SCIENCE

THIRD TERM EXAMINATION

JUNIOR SECONDARY SCHOOL (JSS 1)

SECTION A

Answer all questions. 

1 The union of male and female sex cells is called ____________.

(a) gamete

(b) zygote

(c) cell

(d) embryo

1. ____________ is a part of the mammalian eye where image is formed.

(a) Retina

(b) Optic nerve

(c) Pupil

(d) Ciliaya muscle

2. The chemical symbol for potassium is ____________.

(a) K

(b) Na

(c) H

(d) P

3. All are separation techniques except ____________.

(a) evaporation

(b) sublimation

(c) centrifuge

(d) titration

4. The solar system comprises of ____________.

(a) Sun, planets

(b) sun, metalloid

(c) stars, moon

(d) sun, earth

5. ____________ is the power house of a cell.

(a) Mitochondrion

(b) Nucleus

(c) Chloroplast

(d) Ribosome

6. Which of the following animals is a mammal?

(a) Fish

(b) Whale

(c) Bird

(d) Lizard

7. The unit of energy is called ____________.

(a) Newton

(b) Joule

(c) Watt

(d) Ohms

8. The end product of carbohydrate digestion is ____________.

(a) glucose

(b) maltose

(c) fatty acid and glycerol

(d) Amino acid

9. Which of these is an example of water borne diseases?

(a) Small pox

(b) Chicken pox

(c) Typhoid fever

(d) measles

10. The atomic number of Boron is ____________.

(a) 3

(b) 4

(c) 5

(d) 6

11. All are elements of weather except ____________.

(a) temperature

(b) rainfall

(c) humidity

(d) wave

12. Load stone magnet is ____________ magnet.

(a) impure

(b) natural occurring

(c) fire

(d) temporary

13. Which of the following is a second class lever?

(a) Scissors

(b) Pliers

(c) Crowbar

(d) Bottle opener

14. The temperature at which liquid turns to solid is called ____________ point.

(a) cooling

(b) freezing

(c) boiling

(d) melting

15. The carriers of micro organisms that cause diseases are called ____________.

(a) antibodies

(b) germs

(c) vectors

(d) carrier

16. Astronauts in space have one major problem which is ____________.

(a) weather

(b) heaviness

(c) communication

(d) weightlessness

17. The followings are major types of resources from plants except ____________.

(a) food crops

(b) textile materials

(c) wood crops

(d) hide and skin

18. ____________ is a method of heat transfer.

(a) Evaporation

(b) Conduction

(c) Insulation

(d) Distillation

19. The symbol of resistor is ____________.

20. How much work is done when a force of 200N is applied by car over a distance of 6m?

(a) 1200N

(b) 1200j

(c) 1200m/s2

(d) 1200N/M

21. A sound heard after the reflection of the sound wave is called ____________.

(a) echo

(b) pitch

(c) noise

(d) music

22. These are fossil fuels except ____________.

(a) cooking gas

(b) candle wax

(c) bitumen

(d) kerosene

23. ____________ is not a water pollutant.

(a) CO2

(b) oil

(c) sewage

(d) gammaline

24. Another name for red blood cell is ____________.

(a) erythrocyte

(b) leucocyte

(c) thromcyte

(d) luccocyte

25. Chlorination can be defined as the addition of ____________ to eater to kill germs.

(a) Alum

(b) Cl

(c) Mg

(d) Iron

26. The energy conversion that takes place when you rub a palm together is ____________ energy.

(a) mechanical/sound

(b) mechanical/chemical

(c) heat to sound

(d) mechanical/heat

27. The radiation used to examine soft body tissue is ____________ ray.

(a) ᵝ

(b) ᵧ

(c) ᵪ

(d)

28. The soil type mostly rich in nutrients is ____________.

(a) clay

(b) gravel

(c) loamy

(d) sandy

29. Style, stigma and ovary of a flower are referred to as ____________.

(a) carpel

(b) stamen

(c) petal

(d) sepal

30. The tiny membrane which covers the vaginal opening is called ____________.

(a) velva

(b) hymen

(c) mon pubic

(d) clitoris

31. The pigment which gives plants the green colour is ____________.

(a) chrolophyll

(b) chloroplast

(c) chloroform

(d) chromoplast

32. These are field forces except ____________ force.

(a) electric

(b) frictional

(c) gravitational

(d) magnetic

33. The bones-like structure found in the middle ear are called ____________.

(a) blades

(b) ear bone

(c) ossicle

(d) pinna

34. A pregnant woman will develop goitre if she lacks ____________ in her diet.

(a) calcium

(b) iron

(c) phosphorous

(d) iodine

35. One major difference between plants and animals is ____________.

(a) movement

(b) excretion

(c) reproduction

(d) respiration

36. The genotype “Tt” shows that ____________.

(a) shortness dominate tallness

(b) tallness is partially recessive

(c) shortness is partially dominant

(d) tallness dominates shortness

37. The parts of the body that are responsible for movement are ____________, ____________ and joint.

(a) bone, muscle

(b) bone, cartilage

(c) cartilage,muscle

(d) skeleton.cartilage

38. The quantity of H2O in the atmosphere is termed ____________.

(a) air pressure

(b) humidity

(c) visibility

(d) rainfall

39. The vector for sleeping sickness is ____________.

(a) housefly

(b) blackfly

(c) tee-tse fly

(d) mosquito

40. All are excretory products except ____________.

(a) sweat

(b) urine

(c) carbon (iv) oxide

(d) faeces

41. Limestone is used to make the following except ____________.

(a) concrete

(b) glass

(c) water pipes

(d) quick lime

42. Pulse taking is a medical procedure in determining proper functioning of the ____________.

(a) heart

(b) kidney

(c) lungs

(d) liver

43. The outer ear is called ____________.

(a) eardrum

(b) auditory meatus

(c) pinna

(d) canal

44. The function of lipase is to digest ____________.

(a) starch

(b) proteins

(c) fats

(d) vitamins

45. Which of the following blood group is a universal donor?

(a) AB

(b) O

(c) A

(d) B

46. ____________ Brown discovered Brownian motion.

(a) Robbin

(b) Rowland

(c) Rugged man

(d) Robert

47. Matters could be in form of atoms, molecules and ____________.

(a) iron

(b) ion

(c) lion

(d) fays

48. Less than ____________ % of all the earth’s water is available as fresh water.

(a) 1

(b) 2

(c) 3

(d) 4

49. Dry air contains ____________ % of nitrogen.

(a) 21

(b) 78

(c) 7.8

(d) 2.1