Primary 4 Agricultural Science Third Term Exam Questions

THIRD TERM PROMOTIONAL EXAMINATION

CLASS: PRIMARY 4

SUBJECT: AGRICULTURAL SCIENCE

NAME: ___________________________________

INTRODUCTION 

When I think back to the early days of teaching Agricultural Science in Lagos, one moment that always sticks out is a class activity we did after a heavy rain. The compound was muddy, and puddles had formed all over. As we stepped out to observe insects, one pupil shouted, “Look, sir, mosquitoes are laying eggs here!” That day, we didn’t just talk about stagnant water and mosquitoes — we saw the lesson come alive.

That’s the kind of learning we aim for: rooted in everyday experiences. Agricultural Science is not just theory from a textbook — it’s all around us, in our yards, our homes, even on the way to school. And that’s why this promotional exam has been crafted to test not just what learners can memorize, but what they can relate to.

OBJECTIVES OF THE EXAM

This test is designed to assess how well pupils can:

• Recognize basic agricultural tools and insects

• Understand natural resources and farm safety

• Identify harmful and helpful insects

• Recall preservation methods for farm produce

• Apply real-life observations in theory and diagram work

SECTION A – OBJECTIVE QUESTIONS

Answer all questions by choosing the correct option or filling in the blank spaces.

1. A barometer can either be _____________________ or ______________________
   (Tip: This instrument measures air pressure. Think of science tools you’ve seen in your school lab.)

2. Stone is gotten from ________________
   (a) soil
   (b) trees
   (c) rock
   (If you’ve ever seen a mason crack a rock, you already know the answer.)

3. Mosquitoes bite and transmit _______________ parasites in human blood
   (a) headache
   (b) diarrhea
   (c) malaria

4. Which of these is a harmful insect?
   (a) ant
   (b) tsetse fly
   (c) butterfly
   (I once had a student tell me she thought butterflies were dangerous – until she met a tsetse fly on a trip.)

5. _____________ water is a major cause of mosquitoes
   (a) running
   (b) dirty
   (c) stagnant

6. _____ provide air to the soil by making holes in it
   (a) cockroach
   (b) bee
   (c) ants

7. Unwanted grass on the farm is called ____________
   (a) seed
   (b) grass
   (c) weed

8. Which of the following is a cutting tool?
   (a) saw
   (b) hoe
   (c) rake

9. ______ is used to measure the length and height of an object
   (a) line
   (b) ruler
   (c) stick

10. Which insects help in pollinating flowers?
    (a) cockroach
    (b) butterfly
    (c) ant
    (Think of when you saw butterflies moving from flower to flower in the school garden.)

11. ______________________ is a harmful farm insect.
    (Fill in one you’ve seen attacking crops — maybe on a school farm trip.)

12. List five ways to control harmful insects
    a. ________________________________
    b. ________________________________
    c. ________________________________
    d. ________________________________
    e. ________________________________

SECTION B – THEORY QUESTIONS

Answer all questions with clear sentences and neat diagrams where required.

1. With the aid of a diagram, explain what you understand by an insect.

(Draw and label the body parts of an insect: head, thorax, abdomen, antennae, wings, legs.)
When I was growing up, our backyard garden was full of insects. One day, I caught a grasshopper and used my exercise book to draw its body. I noticed it had six legs and three parts — that’s how I learned what makes an insect!

2. State two methods of controlling insects.

a. ________________________________
b. ________________________________

(Hint: Think about what we use at home — insecticides, clearing stagnant water, using mosquito nets, etc.)
We once had to cancel our school garden project for two days because of armyworms. The solution? A mix of organic pesticides and proper weeding.

3. State four differences between a butterfly and an ant.

Example: Butterflies have wings; ants usually do not.
During a class nature walk, we spotted ants carrying crumbs and a butterfly resting on a leaf. Their movement, color, and structure made a perfect lesson on insect differences.

4. List five methods of farm produce preservation with examples.

a. ________________________________
b. ________________________________
c. ________________________________
d. ________________________________
e. ________________________________

Example: Drying – e.g., drying pepper under the sun. Freezing – e.g., storing fish in a freezer.
My mother still dries okro on trays in the sun. She says it lasts longer that way, especially when there’s no light to run the fridge.

5. Mention five parts of an insect.

a. ________________________________
b. ________________________________
c. ________________________________
d. ________________________________
e. ________________________________

(If you’ve ever seen a beetle or butterfly up close, think about the wings, eyes, legs, and body parts.)

TEACHER’S NOTE: MARKING GUIDE & OBSERVATION STRATEGIES

• Encourage visual expression through diagrams.

• Ask pupils to describe any real-life experiences with insects or farm tools.

• Praise creativity in explaining differences and applying control methods.

• Use storytelling to reinforce retention (e.g., “Remember what happened when we left water in the paint bucket?”).

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CONCLUSION (Humanized Wrap-Up)

Preparing for exams isn’t just about getting the answers right — it’s about seeing the connection between what we learn in class and the world around us. From identifying weeds in your school garden to watching a butterfly pollinate flowers in your compound, Agricultural Science is all around you.

So when your pupils pick up this exam paper, let them know: this isn’t just another test. It’s their chance to show how much they’ve grown — not just in memory, but in observation, curiosity, and understanding of the living world.