New Curriculum Third Term Intermediate Science examination for JSS 1

Class: JSS 1
Term: Third Term
Subject: Intermediate Science
Time: 2 hours
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions. Each question carries 1 mark.

1. Which property makes copper suitable for electrical wiring? (a) Brittleness    (b) Transparency    (c) Water absorption    (d) Electrical conductivity
2. Malleability means a material can be ________. (a) drawn into a thin wire    (b) dissolved in water    (c) hammered into sheets    (d) burned without heat
3. Ductility is the ability of a material to be ________. (a) crushed into powder only    (b) drawn into wire    (c) converted into glass    (d) dissolved in air
4. A metal with a shiny surface is described as ________. (a) brittle    (b) lustrous    (c) porous    (d) transparent
5. Density refers to ________. (a) mass per unit volume    (b) volume per unit time    (c) distance per unit force    (d) heat per unit area
6. Wood is commonly used in building because it can be ________. (a) used as a liquid conductor    (b) melted into glass    (c) formed by firing clay    (d) cut and shaped for structural work
7. Which material is commonly produced by firing clay? (a) Aluminium    (b) Timber    (c) Ceramic    (d) Copper
8. A typical property of glass is ________. (a) high malleability    (b) high ductility    (c) transparency    (d) magnetism in all forms
9. Which material is suitable for making a window pane? (a) Timber beam    (b) Glass    (c) Iron rod    (d) Clay brick
10. A brick is most often used for ________. (a) building walls    (b) carrying electric current    (c) sewing cloth    (d) measuring temperature
11. Technical drawing is used primarily to ________. (a) replace all written measurements    (b) decorate a worksheet without purpose    (c) prepare food    (d) communicate accurate shapes and dimensions
12. A drawing instrument used to draw a circle is a ________. (a) set square    (b) protractor    (c) scale ruler    (d) pair of compasses
13. Which instrument helps draw standard angles? (a) Eraser    (b) Drawing pin    (c) Set square    (d) Pencil sharpener
14. A T-square is used on a drawing board mainly to draw ________. (a) freehand circles    (b) horizontal lines    (c) irregular curves    (d) random arcs
15. A protractor is used for ________. (a) measuring and constructing angles    (b) testing electrical voltage    (c) cutting timber    (d) holding metal sheets
16. A drawing board provides ________. (a) a firm flat working surface    (b) a fuel source    (c) an electrical motor    (d) a paint container
17. Which practice helps produce accurate technical drawings? (a) Guess every dimension.    (b) Draw without holding the ruler.    (c) Ignore the drawing scale.    (d) Use clean instruments and measure carefully.
18. The main purpose of a ruler in drawing is to ________. (a) mark curved arcs only    (b) hold drawing sheets together    (c) measure and draw straight lines    (d) erase incorrect figures
19. Which instrument helps draw perpendicular lines during board practice? (a) Divider only    (b) Set square    (c) Compass needle only    (d) French curve only
20. A drawing sheet should be secured to prevent ________. (a) straight lines    (b) movement during drawing    (c) accurate measurement    (d) clean margins
21. A woodwork hand tool is operated mainly using ________. (a) human effort    (b) automatic computer control only    (c) fuel combustion only    (d) high-voltage electricity only
22. Which tool is used for cutting timber? (a) Try square    (b) Marking gauge    (c) Bradawl    (d) Hand saw
23. The main purpose of a woodwork brace is to ________. (a) smooth wood surfaces    (b) measure a straight edge    (c) turn a bit for boring a hole    (d) remove excess glue
24. A bradawl is used primarily to ________. (a) cut long timber boards    (b) polish metal surfaces    (c) make small starting holes in wood    (d) bend sheet metal
25. A try square is suitable for checking ________. (a) circular diameters only    (b) right angles    (c) electrical resistance    (d) weight of timber
26. After using woodwork tools, they should be ________. (a) cleaned, checked and stored safely    (b) left exposed to rain    (c) scattered on the floor    (d) used for unrelated unsafe tasks
27. Which tool is suited to smoothing a wooden surface? (a) Bradawl    (b) Steel rule    (c) Centre punch    (d) Plane
28. Why are sharp wood-cutting tools stored with care? (a) To make them harder to identify    (b) To encourage corrosion    (c) To remove their handles    (d) To prevent injury and protect cutting edges
29. Metalwork hand tools are intended mainly for ________. (a) growing nursery seedlings    (b) sewing fabric seams    (c) working with metal materials    (d) mixing cosmetic products
30. Which tool is used to grip a small metal part? (a) Paintbrush    (b) Pliers    (c) Metre rule    (d) Drawing board
31. A metal file is used mainly for ________. (a) smoothing or shaping a metal surface    (b) drilling a circular hole    (c) measuring electrical current    (d) drawing vertical lines
32. Which tool can be used to cut thin metal sheets? (a) Tin snips    (b) Wooden mallet    (c) Drawing compass    (d) Marking gauge
33. A hacksaw is mainly used for ________. (a) driving nails into wood    (b) checking a right angle    (c) sharpening a pencil    (d) cutting metal stock
34. Which safety practice is important during metal cutting? (a) Hold a cutting edge near the face.    (b) Leave sharp offcuts on the floor.    (c) Wear suitable eye protection.    (d) Cut without securing the material.
35. Maintenance means ________. (a) using tools until they fail    (b) keeping tools in safe working condition    (c) storing equipment without inspection    (d) discarding all spare parts
36. Routine maintenance of tools may include ________. (a) leaving metal wet after use    (b) cleaning and lubricating suitable parts    (c) ignoring loose handles    (d) removing safety guards
37. Why should rust be controlled on metal tools? (a) It can damage their surfaces and performance.    (b) It always makes tools sharper.    (c) It improves all measurements.    (d) It prevents every accident.
38. Before using a powered machine, a pupil should ________. (a) operate it with damaged cables    (b) remove safety devices    (c) wear loose clothing near moving parts    (d) inspect it and obtain proper supervision
39. A tool with a loose handle should be ________. (a) used at greater force    (b) stored without informing anyone    (c) reported and repaired before use    (d) given to another student immediately
40. Proper tool storage supports ________. (a) uncontrolled rusting    (b) loss of components    (c) safety, durability and easy retrieval    (d) accidental damage

SECTION B: THEORY (30 Marks)
Instruction: Answer Question 1 and any other TWO questions. Each question carries 10 marks.

1. Materials
(a) Differentiate between malleability and ductility. (4 marks)
(b) State three uses of wood, metal, ceramic or glass materials. (6 marks)

2. Technical drawing
(a) Define technical drawing. (2 marks)
(b) Identify four drawing instruments and state one use of each. (8 marks)

3. Woodwork and metalwork tools
(a) Name two woodwork hand tools and give their functions. (4 marks)
(b) Name two metalwork hand tools and give their functions. (4 marks)
(c) State two workshop safety precautions. (2 marks)

4. Workshop maintenance
(a) Define maintenance. (2 marks)
(b) State four ways to maintain and store workshop tools safely. (8 marks)

Objective Marking Scheme
Question 1 – ✅ (d) Electrical conductivity
Question 2 – ✅ (c) hammered into sheets
Question 3 – ✅ (b) drawn into wire
Question 4 – ✅ (b) lustrous
Question 5 – ✅ (a) mass per unit volume
Question 6 – ✅ (d) cut and shaped for structural work
Question 7 – ✅ (c) Ceramic
Question 8 – ✅ (c) transparency
Question 9 – ✅ (b) Glass
Question 10 – ✅ (a) building walls
Question 11 – ✅ (d) communicate accurate shapes and dimensions
Question 12 – ✅ (d) pair of compasses
Question 13 – ✅ (c) Set square
Question 14 – ✅ (b) horizontal lines
Question 15 – ✅ (a) measuring and constructing angles
Question 16 – ✅ (a) a firm flat working surface
Question 17 – ✅ (d) Use clean instruments and measure carefully.
Question 18 – ✅ (c) measure and draw straight lines
Question 19 – ✅ (b) Set square
Question 20 – ✅ (b) movement during drawing
Question 21 – ✅ (a) human effort
Question 22 – ✅ (d) Hand saw
Question 23 – ✅ (c) turn a bit for boring a hole
Question 24 – ✅ (c) make small starting holes in wood
Question 25 – ✅ (b) right angles
Question 26 – ✅ (a) cleaned, checked and stored safely
Question 27 – ✅ (d) Plane
Question 28 – ✅ (d) To prevent injury and protect cutting edges
Question 29 – ✅ (c) working with metal materials
Question 30 – ✅ (b) Pliers
Question 31 – ✅ (a) smoothing or shaping a metal surface
Question 32 – ✅ (a) Tin snips
Question 33 – ✅ (d) cutting metal stock
Question 34 – ✅ (c) Wear suitable eye protection.
Question 35 – ✅ (b) keeping tools in safe working condition
Question 36 – ✅ (b) cleaning and lubricating suitable parts
Question 37 – ✅ (a) It can damage their surfaces and performance.
Question 38 – ✅ (d) inspect it and obtain proper supervision
Question 39 – ✅ (c) reported and repaired before use
Question 40 – ✅ (c) safety, durability and easy retrieval

Theory Marking Scheme
Question 1: (a) Malleability: hammered into sheets; ductility: drawn into wires (2 each). (b) Three correct material-use pairings, e.g. wood—furniture; copper—cables; ceramic—tiles; glass—windows (2 each).
Question 2: (a) Use of standard drawing conventions to communicate shapes/dimensions (2). (b) Ruler—straight line; compasses—circle; protractor—angles; set square—specified angles; T-square—horizontal lines (any four, 2 each).
Question 3: (a) Woodwork: saw—cutting; plane—smoothing; brace—boring; bradawl—starting holes (two, 2 each). (b) Metalwork: hacksaw—cutting; file—shaping; snips—cutting sheets; pliers—gripping (two, 2 each). (c) Safe handling/PPE/supervision (two, 1 each).
Question 4: (a) Keeping equipment in safe serviceable condition (2). (b) Cleaning, drying, checking damage, appropriate lubrication, safe storage, repairs before use (four, 2 each).
Mark only three answered theory questions. Accept factually equivalent points within the taught curriculum.