Second Term Examination 2023.
Class : JSS 1
Subject : Basic Science
1. One of the following is an air pollutant. (a) oxygen (b) hydrogen (c) water vapour (d) carbon(ii)oxide
2. In our Environment One of the following is a pollutant except _________. (a) smoke (b) faeces (c) oil spillage (d) Nitrogen
3. Washing with detergent in a stream is __________. (a) Pollution (b) Hygiene (c) Sanitation (d) none of the above
4. One of the following is not a pollutant of water. (a) Gemalin 20 (b) detergent (c) smoke (d) oil spillage
5. Which of the following is not a matter? (a) Air (b) Table (c) Sand (d) Light
6. Which of the states of matter has no definite volume and shape? (a) Gas only (b) Liquid only (c) Liquid and gas (d) Solid only
7. The following are Characteristics of living things EXCEPT _____________ (a) Expansion (b) Feeding (c) Movement (d) Reproduction
8. Which of the following is not present in animal cell? (a) Cell membrane (b) Cell wall (c) Vacuole (d) Cytoplasm
9. The activities of the cell are controlled by the __________. (a) Cell wall (b) Chloroplast (c) Nucleus (d) Vacuole
10. A plant differs from an animal because a plant ___________. (a) respires (b) grows (c) moves (d) makes it food
11. Aluminium is used for making cooking pots because it is __________. (a) a good conductor of electricity (b) a good conductor of heat (c) metal (d) a non-metal
12. The major source of energy comes from __________. (a) coal (b) fuel (c) The sun (d) wind
13. In which of the following appliances is electrical energy converted to sound energy? (a) Electric motor and television (b) Electric pressing iron and radio (c) Radio and television (d) telephone and thermocouple
14. Which of the following is a natural source of energy ? (a) batteries (b) coal (c) Kerosene (d) petrol
15. The energy possessed by a stone placed on a table is __________ energy. (a) chemical (b) heat (c) kinetic (d) potential
16. Which of the following is Not renewable energy? (a) Wind (b) Wood (c) Sun (d) Gas
17. Aviation fuel is ____________. (a) Diesel oil (b) Engine oil (c) Kerosene (d) Petrol
18. The major source of the earth energy is _________. (a) Moon (b) Mars (c) Venus (d)Sun
19. A microphone converts sound energy to _________ energy. (a) electrical (b) chemical (c) kinetic (d) mechanical
20. Which of the following is found in both plant and animal cells? (a) Chloroplast (b) Glycogen (c) Nucleus (d) Starch granules
21. Which of the following is Not a metal? (a) Calcium (b) Carbon (c) Iron (d) Sodium
22. Which of the following is a property of matter? (a) is expensive (b) has weight (c) is always discussed (d) is important
23. All of these are soil pollutants EXCEPT _________. (a) broken bottles (b) empty can (c) metal scraps (d) unused plastics
24. A source of pollution which affects land and Sea is ____________. (a) application of fertilizers on farmland (b) Burning of waste (c) bush burning (d) oil spillage
25. Soil pollutants are substances that ____________. (a) improve the quality of the soil (b) affect the quality of the soil (c) manage the quality of the soil (d) none of the above
26. Air pollutants can cause one of the following diseases (a) excretory diseases (b) reproductive diseases (c) respiratory diseases (d) skeletal diseases
27. The introduction of harmful substances into the air is called ___________. (a) water pollution (b) environmental pollution (c) air pollution (d) land pollution
28. Water pollution should be prevented because (a) it leads to the spread of diseases (b) serves as a source of nutrients to aquatic animals (c) serve as a source of mineral salt when taken (d) none of the above
29. Coal is ______________. (a) renewable energy (b) non-renewable energy (c) convertible (d) conductable
30. Which of the following makes use of water to generate energy? (a) dynamo (b)hydroelectric plant (c) ship (d) windmill
31. The process by which solid ice changes to water is called ____________. ) a) boiling (b) melting (c) cooling (d) vaporisation
32. The process by which molecules of a liquid are lost to the atmosphere is called _____________. (a) Cooling (b) Freezing (c) Boiling (d) Evaporation
33. _________ is the ability of living things to respond to stimuli in their environment. (a) Irritability (b) Growth (c) Nutrition (d) Excretion
34. ____________ is the basic functional unit of life. (a) Organ (b) System (c) Cell (d) Tissue
35. Matter can be classified into _________. (a) Liquid and Gas (b) Solid and Liquid (c) Living and non-Living things (d) Solid, Gas and Liquid
36. The function of chlorine added to water is to ___________. (a) Filter the water (b) Reduce the water (c) Strengthen the micro-organisms (d) Kill the micro – organisms in the water
37.
Section B
1a. What is pollution?
1b. Mention the types of pollution
1c. List five examples of pollutants
2a. What is matter?
2b. List the states of matter.
2c. Explain the following:
i. Melting point ii. Boiling point
iii.
3a. What are living things ?
3b. State the characteristics of living things
3c. Give three differences between metals and non-metals.
4a. Define Cell
4b. State three differences between plant cell and animal cell
4c. Give two similarities between plant and animal cell.
5a. Explain the meaning of energy
5b. State five sources of energy
5c. Mention two examples of renewable energy and non-renewable energy