SECOND TERM EXAMINATION – BASIC SCIENCE AND TECHNOLOGY (JSS 1)

SECTION A: OBJECTIVE QUESTIONS (ANSWER ALL QUESTIONS)

Here are the correct answers with explanations to improve SEO ranking and readability:

1. An electronic device that processes data is → (c) Computer

   • Example: A desktop computer used for typing and calculations.

2. All of the following are input devices except → (c) Printer

   • Input devices include the mouse, scanner, and keyboard. A printer is an output device because it produces hard copies of digital data.

3. The set of instructions that tell a computer what to do is → (b) Software

   • Example: Microsoft Windows is software that manages computer operations.

4. ______ is not a characteristic of living things → (c) Portion

   • Living things exhibit respiration, growth, and death. “Portion” is unrelated.

5. Matter does not exist in ______ form → (a) Liquidified

   • Matter exists in solid, liquid, and gas states. “Liquidified” is incorrect because it’s not a fundamental state.

6. A symptom of AIDS is → (a) Rapid Weight Loss

   • Other symptoms include fever, night sweats, and immune weakness.

7. HIV is NOT spread through → (b) Hugging

   • HIV spreads via blood contact, unprotected sex, and sharing sharp objects, NOT through casual contact.

8. One of these is NOT an STD → (a) Malaria

   • STDs (Sexually Transmitted Diseases) include syphilis, HIV, and gonorrhea. Malaria is a mosquito-borne disease.

9. A characteristic of good water is → (b) Odourful (Incorrect)

   • Clean water should be odourless, tasteless, and colourless.

10. A cause of water pollution is NOT → (b) Not discharging waste into water

• Polluting water involves dumping waste, oil spills, and sewage discharge.

11. IDS stands for → (b) Acquired Immune Deficiency Syndrome (AIDS)

12. A device that converts chemical energy to thermal energy → (a) Stove

• Example: A gas stove burns fuel to generate heat.

13. HIV stands for → (b) Human Immunodeficiency Virus

14. Pressing iron converts electrical energy to → (c) Heat

15. A form of energy is → (a) Electrical

• Other forms: heat energy, mechanical energy, chemical energy.

16. An example of where an HIV test is done → (a) Teaching Hospital

• Example: Lagos University Teaching Hospital (LUTH).

17. A characteristic of primates NOT included → (d) Belong to the class of mammals (Incorrect)

• All primates are mammals, but specific features include fur, brain, and flexible shoulder joints.

18. A characteristic of metals NOT included → (d) Softness

• Metals are hard, malleable, and ductile, but not soft.

19. Ideal pencils for technical drawing → (d) 4H and 3H

• Hard pencils (H-grade) create precise lines for technical drawings.

20. Material used for constructing houses → (c) Building

• Example: Cement, bricks, and wood.

21. Material used in building mud houses → (d) Grass

• Example: Traditional African huts use mud and thatched grass roofs.

22. A safety device NOT included → (b) Shares (Incorrect)

• Safety devices include goggles and fire extinguishers.

23. Drawing without using measuring tools is → (d) Freehand

• Example: Sketching a tree without a ruler.

24. The primary use of cement is → (a) Building construction

25. Metals are found in → (c) Rocks

26. A tool used to draw vertical lines on a drawing board → (a) T-Square

27. A way NOT to prevent workshop accidents → (b) Talk to people operating the machine (Incorrect)

• Safe actions: Keep tools organized, use protective gear, and maintain cleanliness.

28. Who should study technology? → (c) Everyone

29. Types of fire → (b) 3

• Classes: A (wood, paper), B (liquids), C (electrical).

30. Gloves protect the → (a) Hand

31. Rocks containing metals are called → (a) Iron ore

32. An activity done during leisure → (d) Recreation

• Example: Playing football, dancing, or painting.

33. Throwing a heavy metal ball event is → (a) Shot put

34. Volleyball teams have → (b) 6 players per team

35. Athletics are grouped into → (a) Two (Track and Field)

36. A phase NOT in the high jump → (c) Swing

37. WHO stands for → (b) World Health Organization

38. A method NOT for developing physical fitness → (c) Prospective (Incorrect)

• Fitness methods: weight lifting, circuit training, and isometric exercises.

39. An example of an indoor activity → (a) Dancing

40. Aluminum is a → (b) Metal

41. NOT an example of softwood → (c) Mahogany

• Mahogany is a hardwood.

42. Plastics are made from → (c) Chemicals from crude oil

43. NOT used in making glass → (d) Clay

44. An event occurring by chance, causing injury or damage → (c) Accident

45. Ferrous metals contain → (b) Iron

46. A property of glass NOT included → (d) Elasticity

• Glass is brittle, transparent, and corrosion-resistant but not elastic.

47. Synthetic rubber is obtained from → (c) Petroleum

48. A ferrous metal → (a) Steel

49. Natural rubber is made from → (b) Latex

50. NOT a product of technology → (c) Human

51. The father of computers is → (c) Charles Babbage

52. An activity NOT considered recreation → (a) Buying and selling

53. Fatigue means → (a) Excessive tiredness

SECTION B: THEORY QUESTIONS (ANSWER AS REQUIRED)

ICT SECTION

1. Definition of a Computer:

   • A computer is an electronic device that processes data and performs calculations based on instructions.
   • Example: Laptops, desktops, and smartphones.

2. Components of a Computer:

   • Hardware: Monitor, CPU, Keyboard, Mouse.
   • Software: Operating system, applications.
   • Input devices: Keyboard, mouse.
   • Output devices: Printer, monitor.

3. Classes of Computers:

   • Supercomputer: NASA uses them for space exploration.
   • Mainframe: Banks use them for transactions.
   • Minicomputer: Used in business organizations.
   • Microcomputer: Laptops and desktops.

BASIC SCIENCE SECTION

1. Definition of Water & Effects of Pollution:

   • Water is a transparent, colourless liquid essential for life.
   • Pollution causes diseases, kills aquatic life, and contaminates drinking water.

2. STDs & Symptoms:

   • Examples: HIV, Syphilis, Gonorrhea.
   • Symptoms of Syphilis: Sores, skin rash, swollen lymph nodes.

BASIC TECHNOLOGY SECTION

1. Unsafe Actions in a Workshop:
   • Not wearing protective gear, improper tool handling, distractions.
   • Example: Not wearing goggles while welding.

SECTION A: OBJECTIVE QUESTIONS WITH STUDENT INTERACTIONS

1. An electronic device that processes data is → (c) Computer

Classroom Conversation:

• Teacher: “Who can define a computer?”
• Aisha: “A computer is a big TV that you can type on!”
• Teacher: “Haha! Not exactly. A TV only displays information, while a computer processes and stores data.”

2. All of the following are input devices except → (c) Printer

Classroom Conversation:

• Teacher: “Which of these is NOT an input device?”
• Tolu: “Printer!”
• Teacher: “Correct! Why?”
• Tolu: “Because it doesn’t take information in. It only vomits paper.”
• Teacher: “Hmm… interesting choice of words, but yes, a printer only produces hard copies.”

3. The set of instructions that tell a computer what to do is → (b) Software

Classroom Conversation:

• Teacher: “Who can define software?”
• Daniel: “Soft things inside the computer!”
• Teacher: “Close! But software is not physically soft. It includes programs like Windows or Microsoft Word.”

4. ______ is NOT a characteristic of living things → (c) Portion

Classroom Conversation:

• Teacher: “Which one is NOT a characteristic of living things?”
• Fatima: “Motion!”
• Teacher: “Nope! Motion is actually a characteristic of living things.”
• Fatima: “But my grandpa doesn’t move much. Is he not a living thing?”
• Teacher: “Haha! He is, but he still breathes, grows, and responds to stimuli.”

5. Matter does not exist in ______ form → (a) Liquidified

Classroom Conversation:

• Teacher: “What state does matter NOT exist in?”
• Emeka: “Square form!”
• Teacher: “Oh dear! Matter comes in solid, liquid, or gas forms, not geometric shapes!”

6. A symptom of AIDS is → (a) Rapid Weight Loss

Classroom Conversation:

• Teacher: “Who can name a symptom of AIDS?”
• Seyi: “Loss of hair like my uncle’s bald head!”
• Teacher: “Nooo! AIDS weakens the immune system, but hair loss isn’t a major symptom.”

7. HIV is NOT spread through → (b) Hugging

Classroom Conversation:

• Teacher: “Can you get HIV by hugging?”
• Chinedu: “No! But my grandma says I should not share a cup with anyone.”
• Teacher: “Good hygiene is important, but HIV does not spread through cups or casual contact.”

8. One of these is NOT an STD → (a) Malaria

Classroom Conversation:

• Teacher: “Which of these is NOT an STD?”
• Blessing: “Pregnancy!”
• Teacher: “What?! Pregnancy is not a disease; it’s a condition.”

9. A characteristic of good water is → (b) Odourful (Incorrect)

Classroom Conversation:

• Teacher: “What is a characteristic of good water?”
• Uche: “Sweet taste.”
• Teacher: “Wrong! Clean water is tasteless, odourless, and colourless!”
• Uche: “So why does my grandma’s water taste like metal?”
• Teacher: “That’s because it has impurities!”

10. A cause of water pollution is NOT → (b) Not discharging waste into water

Classroom Conversation:

• Teacher: “Who can give a funny but wrong cause of water pollution?”
• Hassan: “Drinking all the water so there’s none left to pollute!”
• Teacher: “Haha! Not exactly, but pollution happens when harmful substances enter water.”

SECTION B: THEORY QUESTIONS WITH STUDENT INTERACTIONS

ICT SECTION

1. Definition of a Computer

• A computer is an electronic device that processes data and performs calculations based on instructions.

Classroom Conversation:

• Teacher: “Can anyone define a computer?”
• Zainab: “A box that makes students fail exams when it shuts down!”
• Teacher: “Haha! That’s why we should always save our work!”

2. Components of a Computer

• Hardware: Monitor, CPU, Keyboard, Mouse
• Software: Operating system, applications

Classroom Conversation:

• Teacher: “Is a computer mouse a real mouse?”
• Abdul: “Yes, but it doesn’t eat food!”
• Teacher: “No, it’s just a device for moving the cursor, not a real animal.”

BASIC SCIENCE SECTION

1. Definition of Water & Effects of Pollution

• Water is a transparent, colourless liquid essential for life.
• Pollution causes diseases, kills aquatic life, and contaminates drinking water.

Classroom Conversation:

• Teacher: “Why should we not drink dirty water?”
• Tomi: “Because it tastes bad and my mummy will shout!”
• Teacher: “Correct! But also, it carries diseases!”

BASIC TECHNOLOGY SECTION

1. Unsafe Actions in a Workshop

• Not wearing protective gear, improper tool handling, distractions.

Classroom Conversation:

• Teacher: “What happens if you don’t wear safety goggles while welding?”
• David: “You will turn into Iron Man!”
• Teacher: “Haha! No, but you could damage your eyes!”

STUDENT FUNNY & ANNOYING ANSWERS IN EXAMS

1. T-Square Usage Question:

• Student: “Used to measure tea for my mummy’s tea cup.”
• Teacher: “It’s used for drawing, not making tea!”

2. Electricity Transformation Question:

• Student: “Electricity changes into food because we use it to cook.”
• Teacher: “No! Electricity turns into heat, not food itself!”

3. Accidents Definition:

• Student: “An accident is when someone falls because they are not looking.”
• Teacher: “True, but accidents can happen in traffic, at work, and in sports too!”

CONCLUSION