Grade 4 Agricultural Science – Third Term Revision (Weeks 1–9)
Source 1
FORT ROYAL SCHOOLS
THIRD TERM 2025/2026 SESSION
REVISION TEST
AGRICULTURAL SCIENCE
Circle the correct letter for Section
Group 1
Moderate (1–40)
Question 1a
Pre-planting operations are done:
Question 1b
Removing weeds and stones is called:
Question 1c
Tilling the soil means:
Question 1d
Which of these is a pre-planting operation?
Question 1e
The method of planting where seeds are scattered by hand is called:
Question 1f
Placing seeds in rows at regular distances is called:
Question 1g
Transplanting is used for crops like:
Question 1h
Post-planting operations are activities done:
Question 1i
Removing extra seedlings to give space is called:
Question 1j
Filling empty holes with new seeds is called:
Question 1k
Unwanted plants that compete with crops are called:
Question 1l
Covering soil with dry grass is called:
Question 1m
Which operation helps plants that are too crowded?
Question 1n
Adding nutrients to soil is called:
Question 1o
A common weed in Nigerian farms is:
Question 1p
An example of a pest that attacks crops is:
Question 1q
Hand picking is a method of:
Question 1r
Which of these is a safe pest control method for children?
Question 1s
A weevil damages:
Question 1t
Striga is a weed that attacks:
Question 1u
Harvesting means:
Question 1v
Maize is ready to harvest when the husk turns:
Question 1w
Tomatoes are ready when they turn:
Question 1x
Yams are ready when the leaves:
Question 1y
Which tool is used for harvesting maize?
Question 1z
Uprooting is the harvesting method for:
Question 1aa
Processing of farm produce means:
Question 1ab
Drying is a processing method used for:
Question 1ac
Cassava is processed into garri through:
Question 1ad
Palm oil is obtained by:
Question 1ae
Why do farmers process their produce?
Question 1af
Storage of farm produce means:
Question 1ag
A silo is used for storing:
Question 1ah
Yams are traditionally stored in a:
Question 1ai
Airtight containers help store grains because they:
Question 1aj
One consequence of poor storage is:
Question 1ak
Marketing of farm produce means:
Question 1al
A middleman is someone who:
Question 1am
A group of farmers selling together is called a:
Question 1an
One benefit of marketing is:
Group 2
Advanced (41–64)
Question 2a
Why is tilling important for crop growth?
Question 2b
Which of these is an advantage of drilling over broadcasting?
Question 2c
Thinning is important because it:
Question 2d
Mulching helps the soil by:
Question 2e
Why should you not store yams in a plastic bag?
Question 2f
A farmer notices holes in maize leaves. Which pest is likely responsible?
Question 2g
Using ladybugs to eat aphids is an example of:
Question 2h
A sign that beans are ready to harvest is:
Question 2i
Which processing method uses fermentation?
Question 2j
Why should grains be dried before storage?
Question 2k
A direct marketing channel (farmer → consumer) gives the farmer:
Question 2l
Why might a farmer sell to a middleman instead of directly?
Question 2m
A cooperative helps farmers by:
Question 2n
Which of these is a physical pest control method?
Question 2o
Staking is used for crops like tomato because:
Question 2p
Pruning helps a plant by:
Question 2q
Which of these is a post-harvest handling activity?
Question 2r
A major problem farmers face in marketing is:
Question 2s
The NDLEA helps farmers indirectly by:
Question 2t
Which of these is an example of a processed farm product?
Question 2u
A yam barn is built with poles to allow:
Question 2v
Which of these is NOT a pest?
Question 2w
A farmer can improve storage of grains at home by:
Question 2x
The main purpose of storing farm produce is to:
Group 3
Hot (65–80)
Question 3a
A farmer plants maize using drilling. After germination, he notices some holes have no plants. He replants seeds in those holes. This is called:
Question 3b
A child helps a farmer by picking insects off tomato plants. This pest control method is:
Question 3c
A farmer stores maize in a room with a leaking roof. After two months, the maize is mouldy and full of weevils. What mistake did he make?
Question 3d
A cassava farmer processes his harvest into garri instead of selling fresh tubers. Why is this financially better?
Question 3e
A tomato farmer has a bumper harvest but no refrigerator. Which processing method can he use to avoid spoilage?
Question 3f
A cooperative of yam farmers builds a central yam barn. This helps them because:
Question 3g
A farmer uses a tractor (modern) instead of a hoe (traditional). What is the main advantage for a large farm?
Question 3h
A child sees a weed that looks like the crop. The best action is to:
Question 3i
A farmer grows maize for the first time. The cobs are small and the grains are soft. What mistake likely happened?
Question 3j
Which of these is a sign that cassava is ready for harvest?
Question 3k
A market woman sells fresh tomatoes in the morning for ₦200 per kg. By evening, she reduces to ₦100 because they are spoiling. This shows the importance of:
Question 3l
A farmer complains that middlemen pay very low prices. To solve this, the farmer should:
Question 3m
A weevil infestation in stored beans can be prevented by:
Question 3n
A farmer wants to control weeds without chemicals. Which methods can he use?
Question 3o
A child helps at home by sorting grains and removing damaged ones before storage. This practice:
Question 3p
The overall purpose of agricultural science is to:
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