Third Term Examination
Class : JSS 2
Subject : Basic Science
Name : ______________________________________
Instruction : Answer all questions correctly
1. The male reproductive part of the flowering plants is __________. (a) Androecium (b) Gynoecium (c) Ovules (d) Ova
2. The fertilized ovules inside the ovary later develop into ___________. (a) Foetus (b) Fruits (c) Seeds (d) Embryo
3. Which of these does not affect the evaporation of a liquid? (a) Temperature (b) Wind (c) Volume (d) Surface area
4. When matter changes from gaseous to liquid state, it is termed _________. (a) Sublimation (b) Condensation (c) Evaporation (d) Melting
5. The heat transfer which does not need a material medium is __________. (a) Conduction (b) Convection (c) Radiation (d) Insulation
6. The mechanism of heat transfer from one point to another through the vibration of the molecules of the medium is ___________. (a) Convection (b) Diffusion (c) Conduction (d) Radiation
7. Chemical substances used in the preparation of drugs required for medical treatment are called ___________. (a) Pesticides (b) Insecticides (c) Cosmestics (d) Pharmaceuticals
8. Fertilizers are examples of ___________. (a) Pesticides (b) Herbicides (c) Agrochemicals (d) Insecticides
9. The process whereby transmitted sound waves bounce back from the surface of a solid or liquid is called __________ of sound. (a) Reflection (b) Refraction (c) Perception (d) Propagation
10. Sound can be transmitted through the following except ___________. (a) Wire (b) Air (c) Pipes (d) Vacuum
11. The method used in the purification of crude oil based on the _________ of crude oil fractions. (a) Boiling point (b) Density (c) Flammability (d) Volatility
12. One of the following is not an organ for Excretion. (a) Kidney (b) Lungs (c) Skin (d) Mouth
13. Any special feature that enables an organism to live and survive in a particular habitat is called _________. (a) development (b) growth (c) adaptation (d) strength
14. The interaction between living things and non-living environment makes up the __________. (a) ecosystem (b) habitat (c) biome (d) environment
15. __________ is responsible for handling infections that threatens to damage our body. (a) Blue blood cells (b) Red blood cells (c) Plasma (d) White blood cells
16. The rigid frame which gives an organism shape and support is ____________. (a) Joint (b) Skeleton (c) Bone (d) Cartilage
17. __________ joint allows free rotation of bones in all directions. (a) Pivot (b) Gliding (c) Ball and socket (d) Hinge
18. The energy in food chain is from the ____________. (a) Decomposer (b) Producer (c) Sun (d) Root
19. The weight of an object is measured in ___________. (a) Metre (b) Kilogram (c) Newton (d) Joule
20. __________ contains living cell, blood vessel and nerves which keeps tooth alive and supply nutrient for growth. (a) Pulp cavity (b) Cement (c) Roof (d) Enamel
21. Dental formulae for man is represented as ___________. (a) I 3/3 C 1/1 PM 4/4 M 3/3 (b) I 2/2 C 0/2 PM 3/2 M 3/3 (c) I 2/2 C 1/1 PM 2/2 M 3/3 (d) I 2/2 C 0/2 PM 3/2 M 3/3
22. In food test fat and oil dissolve in _________ (a) Dilute Iodine solution (b) Copper sulphate (c) Alcohol (d) Sodium hydroxide
23. Pepsin and Renin are enzymes present in the ___________. (a) mouth (b) Stomach (c) Small intestine (d) Gullet
24. All except one is not a respiratory disease. (a) Leukemia (b) Bronchitis (c) Asthma (d) Pneumonia
25. Which of the following is not a class of vertebrates? (a) Mammals (b) Pisces (c) Insect (d) Amphibians
26. The S.I unit of power is __________. (a) Amber (b) Newton (c) Kilogram (d) Watts
27. The machine use in Raising load is known as ____________. (a) Screw (b) Inclines plane (c) Wedge (d) Lever
28. A body of mass 30kg is suspended at a height of 12m from the ground. What is the potential energy of the body at this height? (g = 19m/s²) (a) 0.36 J (b) 3.6 J (c) 36 J (d) 3600 J
29. Asthma is a disease associated with the ___________ system. (a) Digestive (b) Reproductive (c) Respiratory (d) Circulatory
30. How many classes of food are contained in balanced diet? (a) 6 (b) 5 (c) 4 (d) 3
31. The energy possessed by a stretched rubber is ________. (a) Mechanical (b) Kinetic (c) Potential (d) Heat
32. When Ola kicks a ball, the chemical energy in the food he has eaten is converted into _________ energy. (a) Mechanical (b) Electrical (c) Potential (d) Kinetic
33. The components of crude oil are separated by _____________. (a) Filtration (b) Chromatography (c) Crystallization (d) Fractional distillation
34. Which of these characteristics makes man unique among living organism? (a) possession of well developed brain (b) ability to stand upright (c) possession of opposable fingers (d) possession of eyes on the forehead
35. _________ are chemicals produced in small quantities with high degree of purity. (a) Heavy chemicals (b) Alloys (c) Light chemicals (d) Fine chemicals
36. The process by which food substance are broken down into simple and soluble form is called __________. (a) Excretion (b) Digestion (c) Egestion (d) Elimination
37. Pepsin present in the stomach digest ___________. (a) Protein (b) Carbohydrate (c) Fat and oil (d) Vitamins
38. __________ provide energy we need in our body. (a) Vitamins (b) Chlorophyll (c) Carbohydrate (d) Liver
39. The end product of protein is ___________. (a) Carboxylic acid (b) Amino acid (c) Simple sugar (d) Glucose
40. __________ is a respiratory disease in which the sufferers experiences shortness of breath. (a) Asthma (b) Sickle cell (c) Leukemia (d) Anemia
Section B : Theory
Answer two questions from this section.
1a. Define Energy
1b. Calculate the quantity of electrical energy used by an electric bulb rates 60 watts used for 2 hours.
2a. Define Refining
2b. State five (5) products of petroleum refining.
2c. State five (5) uses of petrochemical products.
3a. Explain the two types of abstinence
3b. State two importance of honest communication during puberty
3c. Identify four blood genotypes in human.
4a. Define the following terms:
i. Breastfeeding
ii. Thermal energy
iii. Abstinence
4b. Name four toxic chemicals.
4c. Name two insulating materials.