Examination on Basic Science
Class: JSS 1
Term: First Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is anything that has mass and occupies space. (a) Energy (b) Light (c) Matter (d) Sound
2. Which of the following is a characteristic of living things? (a) Non-reactiveness (b) Reproduction (c) Immobility (d) Absence of growth
3. The main reason for eating a balanced diet is to ________. (a) Become fat (b) Provide all necessary nutrients (c) Eat only sugary foods (d) Reduce body weight
4. The process by which the body obtains and uses food is called ________. (a) Digestion (b) Excretion (c) Nutrition (d) Respiration
5. Which of these is NOT a state of matter? (a) Solid (b) Liquid (c) Gas (d) Energy
6. All of these are classes of food except ________. (a) Carbohydrates (b) Proteins (c) Air (d) Vitamins
7. An example of a non-metal is ________. (a) Iron (b) Copper (c) Sulphur (d) Aluminium
8. The correct step in maintaining personal hygiene during menstruation is to ________. (a) Avoid bathing (b) Use dirty pads (c) Change sanitary pads regularly (d) Share sanitary pads
9. Which of these is not a symptom of drug abuse? (a) Poor academic performance (b) Aggressive behaviour (c) Good academic performance (d) Loss of appetite
10. Puberty is the stage of human development when an individual becomes ________. (a) A child (b) Reproductively mature (c) An old person (d) A baby
11. The method of sanitation that involves proper disposal of human waste is called ________. (a) Air pollution (b) Excreta disposal (c) Noise pollution (d) Deforestation
12. ________ is the process by which living organisms produce offspring. (a) Respiration (b) Digestion (c) Reproduction (d) Excretion
13. Which of the following is an internal male reproductive organ? (a) Penis (b) Scrotum (c) Testis (d) Urethra
14. All of these are characteristics of living things except ________. (a) Movement (b) Growth (c) Non-responsiveness (d) Respiration
15. Which of these substances is NOT a drug when misused? (a) Alcohol (b) Cannabis (c) Food (d) Tobacco
16. The main reason for good sanitation practices is to prevent ________. (a) Wealth (b) Diseases (c) Happiness (d) Comfort
17. ________ are substances that change the way the body and mind work. (a) Food (b) Water (c) Drugs (d) Air
18. Which of these is not a physical change experienced during puberty? (a) Growth of pubic hair (b) Voice change (c) Increased wisdom (d) Breast development
19. The monthly discharge of blood from a female’s body is called ________. (a) Ovulation (b) Fertilization (c) Menstruation (d) Conception
20. An example of a social change during adolescence is ________. (a) Rapid growth (b) Increased interest in peer groups (c) Voice deepening (d) Menstruation
21. A balanced diet should contain ________. (a) Only carbohydrates (b) All classes of food in the right proportions (c) Only proteins (d) Only fats
22. The external female reproductive organ is the ________. (a) Uterus (b) Ovary (c) Fallopian tube (d) Vulva
23. Which of the following is a symptom of drug addiction? (a) Good health (b) Craving for the drug (c) Financial stability (d) Clear thinking
24. All of these are good sanitation practices except ________. (a) Proper waste disposal (b) Clean water supply (c) Open defecation (d) Regular handwashing
25. Which of these is NOT a function of the male reproductive system? (a) Producing sperm (b) Producing male hormones (c) Producing eggs (d) Transporting sperm
26. The main reason for classifying non-living things into metals and non-metals is to ________. (a) Make them look beautiful (b) Understand their properties and uses (c) Make them disappear (d) Change their colour
27. ________ is the stage between childhood and adulthood. (a) Infancy (b) Adulthood (c) Adolescence (d) Old age
28. Which of these is not a class of food? (a) Carbohydrates (b) Proteins (c) Vitamins (d) Water
29. The correct step in planning an adequate diet involves considering ________. (a) Only taste (b) Age, activity level, and health status (c) Only cost (d) Only quantity
30. An example of a non-living thing that is a metal is ________. (a) Wood (b) Plastic (c) Iron (d) Air
31. Maintaining good personal hygiene is important for ________. (a) Causing infections (b) Preventing infections (c) Making you dirty (d) Spreading diseases
32. The misuse of drugs can lead to ________. (a) Good health (b) Addiction (c) Wealth (d) Happiness
33. Which of the following statements about matter is true? (a) It has no mass (b) It does not occupy space (c) It can exist as solid, liquid, or gas (d) It is invisible
34. All of these are characteristics of plants except ________. (a) Photosynthesis (b) Fixed in one place (c) Locomotion (d) Growth
35. Which is NOT an importance of living things? (a) They provide food (b) They produce oxygen (c) They cause air pollution (d) They are used for medicines
36. The main reason for caring for reproductive organs is to ________. (a) Make them look better (b) Maintain fertility and prevent infections (c) Change their size (d) Use them incorrectly
37. A substance that is used for medical treatment but can be abused is called a ________. (a) Food (b) Water (c) Drug (d) Vitamin
38. The correct step to cope with emotional changes during adolescence is to ________. (a) Keep feelings to yourself (b) Talk to a trusted adult (c) Ignore the feelings (d) Become aggressive
39. Which of these is not a method of sanitation? (a) Proper waste disposal (b) Provision of clean water (c) Eating junk food (d) Drainage systems
40. The ability of living things to react to changes in their environment is called ________. (a) Movement (b) Reproduction (c) Irritability (d) Growth

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define matter. (2 marks)
(b) List three characteristics of living things. (3 marks)
(c) Differentiate between metals and non-metals, giving one example for each. (3 marks)
(d) State two differences between plants and animals. (2 marks)

2. (a) What is puberty? (2 marks)
(b) List three physical changes that occur in boys during adolescence. (3 marks)
(c) Describe the importance of personal hygiene, especially during menstruation. (3 marks)
(d) Name two internal male reproductive organs. (2 marks)

3. (a) Define nutrition. (2 marks)
(b) List three classes of food and state one importance of each. (3 marks)
(c) Explain what drug abuse means and give two consequences. (3 marks)
(d) State two medical uses of drugs. (2 marks)

4. (a) What is sanitation? (2 marks)
(b) Explain two methods of waste disposal as part of sanitation. (3 marks)
(c) Describe the functions of any two female reproductive organs. (3 marks)
(d) Name the three common states of matter. (2 marks)

Objective Marking Scheme

Question 1 – ✅ (c) Matter
Question 2 – ✅ (b) Reproduction
Question 3 – ✅ (b) Provide all necessary nutrients
Question 4 – ✅ (c) Nutrition
Question 5 – ✅ (d) Energy
Question 6 – ✅ (c) Air
Question 7 – ✅ (c) Sulphur
Question 8 – ✅ (c) Change sanitary pads regularly
Question 9 – ✅ (c) Good academic performance
Question 10 – ✅ (b) Reproductively mature
Question 11 – ✅ (b) Excreta disposal
Question 12 – ✅ (c) Reproduction
Question 13 – ✅ (c) Testis
Question 14 – ✅ (c) Non-responsiveness
Question 15 – ✅ (c) Food
Question 16 – ✅ (b) Diseases
Question 17 – ✅ (c) Drugs
Question 18 – ✅ (c) Increased wisdom
Question 19 – ✅ (c) Menstruation
Question 20 – ✅ (b) Increased interest in peer groups
Question 21 – ✅ (b) All classes of food in the right proportions
Question 22 – ✅ (d) Vulva
Question 23 – ✅ (b) Craving for the drug
Question 24 – ✅ (c) Open defecation
Question 25 – ✅ (c) Producing eggs
Question 26 – ✅ (b) Understand their properties and uses
Question 27 – ✅ (c) Adolescence
Question 28 – ✅ (d) Water
Question 29 – ✅ (b) Age, activity level, and health status
Question 30 – ✅ (c) Iron
Question 31 – ✅ (b) Preventing infections
Question 32 – ✅ (b) Addiction
Question 33 – ✅ (c) It can exist as solid, liquid, or gas
Question 34 – ✅ (c) Locomotion
Question 35 – ✅ (c) They cause air pollution
Question 36 – ✅ (b) Maintain fertility and prevent infections
Question 37 – ✅ (c) Drug
Question 38 – ✅ (b) Talk to a trusted adult
Question 39 – ✅ (c) Eating junk food
Question 40 – ✅ (c) Irritability