Primary 4 Third Term Examination  Basic Science

Primary 4 Third Term Examination – Basic Science

SECTION A: Multiple Choice Questions

Choose the correct answer from the options provided.

1. __________ is not a material used for shape construction.
   a) Scissors
   b) Table
   c) Telephone

2. Technology makes life __________.
   a) Difficult
   b) Easy
   c) Hard

3. Which of these forms of energy is used in ironing clothes and cooking?
   a) Sound energy
   b) Heat energy
   c) Chemical energy

4. Houses, factories are examples of __________.
   a) Building
   b) Plot of land
   c) Permanent secretaries

5. __________ is not a cutting tool used in constructing with wood or metal.
   a) Chisel
   b) Scissors
   c) Sewing scissors

6. Which of these is not part of the feeding system?
   a) Chest
   b) Teeth
   c) Tongue

7. __________ is not a constituent of soil.
   a) Cloud
   b) Water
   c) Air

8. One of these water projects provides hydroelectricity for Nigeria:
   a) Kaniji Dam
   b) Lagos Canal
   c) Baugada Dam

9. __________ is needed in constructing shapes.
   a) Paper
   b) Iron
   c) Water

10. Which of these objects cannot be constructed with paper?
    a) Box
    b) Stone
    c) Cylinder

11. __________ is not an example of dentition in man.
    a) Scissor
    b) Incisor
    c) Molar

12. One of these is an example of contaminated food:
    a) Fresh tomatoes
    b) Green vegetables
    c) Rotten fruit

13. __________ is the ability or capacity to do work.
    a) Might
    b) Energy
    c) Magic

14. __________ is not an example of an ICT gadget.
    a) Radio
    b) Television
    c) Store

15. __________ is an example of an instrument used in measuring weather.
    a) Time
    b) Clock
    c) Rain gauge

16. The freezing point of water is __________.
    a) 1000°C
    b) 0°C
    c) 400°C
    d) 180°C

17. __________ is an example of a safety device.
    a) Pothole
    b) Road block
    c) Traffic light
    d) House

18. Which of these does not need maintenance?
    a) Diseases
    b) Car
    c) Clothes
    d) House

19. One of these is not a drawing material:
    a) Pencil
    b) Eraser
    c) Ruler
    d) Hammer

20. The primary source of energy is __________.
    a) The sun
    b) The moon
    c) Stars
    d) Sky

21. __________ is the ability to do work.
    a) Motion
    b) Energy
    c) Strength
    d) Power

22. The instrument used for measuring temperature is __________.
    a) Rain gauge
    b) Thermostat
    c) Thermometer
    d) Drug

23. The symbol for Celsius is __________.
    a) Cl
    b) C
    c) S
    d) Cel

24. The path along which electricity travels is known as __________.
    a) Circuit
    b) Current
    c) Fuse
    d) Avenue

25. __________ is a synthetic cleansing agent used with water.
    a) Alcohol
    b) Starch
    c) Oil
    d) Detergent

SECTION B: Theory Questions

Attempt all the questions in this section.

1. Write six classes of food.

2. Define the product of technology.
   a) List four examples of products of technology.

3. What is energy?
   b) Write two examples of special buildings.

4. Building means __________.
   b) List three types of buildings.

5. __________ is shape construction.

Explanation of Answers in a Lively Classroom Setting

SECTION A: Multiple Choice Questions

1. __________ is not a material used for shape construction.

   • Answer: b) Table

   • Explanation: When we think of materials used for constructing shapes, we use items like scissors for cutting or telephone to communicate for construction ideas. A table, however, is a finished piece of furniture, not a material. We build shapes with scissors to cut paper and telephone to talk about ideas.

2. Technology makes life __________.

   • Answer: b) Easy

   • Explanation: Technology is about using tools, machines, and knowledge to solve problems and make tasks easier. From cooking with a microwave to using a mobile phone for calls and messages, technology generally helps us do things more efficiently, making life easy.

3. Which of these forms of energy is used in ironing clothes and cooking?

   • Answer: b) Heat energy

   • Explanation: Heat energy is the form of energy used in both cooking food and ironing clothes. Heat makes things hot, which is exactly what we need to iron clothes or cook food. Sound energy is for music, and chemical energy is inside fuel and food.

4. Houses, factories are examples of __________.

   • Answer: a) Building

   • Explanation: A building is any structure that is made by humans for various purposes like living, working, or storing things. Houses are for living, and factories are places where things are made.

5. __________ is not a cutting tool used in constructing with wood or metal.

   • Answer: c) Sewing scissors

   • Explanation: Sewing scissors are used to cut fabric, not wood or metal. Tools like chisels and saws are designed to cut through wood or metal, making them the right tools for construction.

6. Which of these is not part of the feeding system?

   • Answer: a) Chest

   • Explanation: The chest is part of your body but is not involved in eating or digesting food. The teeth help break down food, and the tongue helps with swallowing and tasting.

7. __________ is not a constituent of soil.

   • Answer: a) Cloud

   • Explanation: Clouds are made of water vapor, and soil is made up of minerals, water, and air. So, clouds do not belong in soil!

8. One of these water projects provides hydroelectricity for Nigeria:

   • Answer: a) Kaniji Dam

   • Explanation: A dam is a structure built to control the flow of water and generate hydroelectricity. The Kaniji Dam is one of the main dams in Nigeria that helps generate electricity using the power of water.

9. __________ is needed in constructing shapes.

   • Answer: a) Paper

   • Explanation: Paper is an ideal material to construct shapes, especially in crafts. You can cut, fold, and shape it into various forms like boxes, cones, or cylinders. Iron and water are not suitable materials for this purpose.

10. Which of these objects cannot be constructed with paper?

    • Answer: b) Stone

    • Explanation: Stone is a hard material, while paper is soft and flexible. You can make a box or a cylinder out of paper, but you can’t make a stone. Stones are naturally formed!

SECTION B: Theory Questions

1. Write six classes of food.

   • Explanation:

     • Carbohydrates (like rice and bread) provide energy.

     • Proteins (like beans, eggs, and meat) help build and repair the body.

     • Fats and Oils (like butter, cooking oil) give us energy and keep us warm.

     • Vitamins (like fruits and vegetables) help the body stay healthy.

     • Minerals (like salt and iron) are important for bone health.

     • Water helps us stay hydrated and supports all body functions.

2. Define the product of technology.

   • Explanation: Products of technology are tools or machines that help us in daily life. For example, a telephone helps us communicate, a microwave helps us cook quickly, and computers help with school work and communication.

     • Examples of products of technology:

       1. Mobile phones

       2. Televisions

       3. Computers

       4. Refrigerators

3. What is energy?

   • Explanation: Energy is the ability to do work or cause changes. There are different forms of energy, such as heat energy (for cooking), light energy (from the sun or bulbs), and sound energy (for music).

     • Special buildings like skyscrapers and stadiums use energy for things like lighting and air conditioning.

4. Building means __________.

   • Explanation: A building is a structure made for use as a home, office, factory, or other purposes.

     • Types of buildings:

       1. Residential buildings (houses)

       2. Commercial buildings (shops, offices)

       3. Industrial buildings (factories)

5. __________ is shape construction.

   • Explanation: Shape construction involves creating various shapes using materials. For example, in arts and crafts, paper is cut into shapes like circles, squares, or triangles to make models.