Revision and Review Test Agricultural Science Primary 5 Second Term Lesson Notes

Agricultural Science Primary 5 Second Term Revision (Week 11)

Comprehensive Revision Exercise

Part A: Review and Revision

20 Frequently Asked Questions (FAQs) with Answers

1. What are weeds?
   Weeds are unwanted plants that grow among crops and can cause harm to them.
2. What is the effect of weeds on crops?
   Weeds compete with crops for nutrients, water, and light, which can reduce crop yield.
3. How can weeds be controlled?
   Weeds can be controlled using methods like hand weeding, herbicides, and crop rotation.
4. What are pests?
   Pests are animals or insects that harm crops by feeding on them or spreading diseases.
5. Give an example of a common pest.
   An example of a pest is the aphid, which feeds on plant juices.
6. What is biological pest control?
   Biological pest control involves using natural predators or parasites to control pests.
7. How can pesticides help in pest control?
   Pesticides are chemicals that kill or repel pests, helping to protect crops from damage.
8. What is the importance of controlling pests and weeds on a farm?
   Controlling pests and weeds helps protect crops, ensures better yields, and keeps the farm healthy.
9. What is the difference between piercing and sucking insects and burrowing insects?
   Piercing and sucking insects, like aphids, suck plant juices, while burrowing insects, like termites, create holes in plants or soil.
10. Why do pests damage crops?
    Pests damage crops by feeding on them, which can stunt growth, spread diseases, or kill the plants.
11. What are some ways to control pests on the farm?
    Ways to control pests include using pesticides, setting traps, and encouraging natural predators.
12. What are the advantages of using biological control?
    Biological control is eco-friendly, sustainable, and does not harm the environment.
13. What is the disadvantage of using chemical pesticides?
    Pesticides can harm beneficial insects, pollute the environment, and may cause health risks.
14. What are the signs of pest damage on crops?
    Signs include holes in leaves, discoloration, and wilting of plants.
15. Why is it important to identify pests early?
    Early identification helps in timely control, reducing crop damage and loss.
16. What is a trap used for in pest control?
    A trap is used to catch pests, preventing them from damaging crops.
17. What is a common example of a weed?
    A common weed is the crabgrass, which can invade vegetable gardens.
18. Why should farmers control weeds on their farms?
    Weeds reduce crop yield by competing for resources and can also harbor pests and diseases.
19. What is the role of ladybugs in pest control?
    Ladybugs feed on aphids and other pests, helping to control their populations.
20. How can weeds benefit animals?
    Some weeds can be used as animal feed, providing nutrients for livestock.

Part B: Objective Questions

20 Fill-in-the-Blank Questions with Options

1. Weeds compete with crops for __________.
   a) sunlight
   b) space
   c) nutrients
   d) all of the above
2. A __________ is an example of a piercing and sucking insect pest.
   a) grasshopper
   b) butterfly
   c) aphid
   d) termite
3. __________ is a method of controlling pests by using natural predators.
   a) Biological control
   b) Physical control
   c) Chemical control
   d) Mechanical control
4. Pesticides are __________ that help in killing pests.
   a) plants
   b) chemicals
   c) tools
   d) machines
5. __________ is an example of a burrowing insect pest.
   a) Mosquito
   b) Termite
   c) Ant
   d) Ladybug
6. __________ is an example of a common weed.
   a) Grass
   b) Dandelion
   c) Cabbage
   d) Tomato
7. Weeds reduce crop yield by competing for __________.
   a) space
   b) food
   c) water
   d) all of the above
8. A __________ trap is used to capture rodents.
   a) sticky
   b) light
   c) baited
   d) water
9. __________ pesticides are harmful to humans and animals.
   a) Organic
   b) Chemical
   c) Biodegradable
   d) Natural
10. __________ is a common method of weed control.
    a) Hand weeding
    b) Fertilizing
    c) Pruning
    d) Irrigation
11. Pests damage crops by __________ them.
    a) growing
    b) feeding on
    c) watering
    d) planting
12. __________ insects damage crops by sucking plant juices.
    a) Burrowing
    b) Piercing
    c) Pollinating
    d) Flying
13. __________ is used to control weeds in large fields.
    a) Manual weeding
    b) Herbicides
    c) Organic pesticides
    d) Crop rotation
14. __________ is an example of a biological control method.
    a) Using ladybugs to eat aphids
    b) Spraying pesticides
    c) Trapping rats
    d) Burning weeds
15. The use of __________ helps protect beneficial insects.
    a) chemical pesticides
    b) natural predators
    c) synthetic fertilizers
    d) herbicides
16. __________ control involves setting up physical barriers like fences.
    a) Biological
    b) Chemical
    c) Physical
    d) Mechanical
17. Weeds can be used as __________ for animals.
    a) food
    b) fertilizer
    c) shelter
    d) decoration
18. __________ pests are harmful to crops and need to be controlled.
    a) Beneficial
    b) Helpful
    c) Harmful
    d) Neutral
19. __________ is a key method to prevent pest damage.
    a) Crop rotation
    b) Harvesting early
    c) Feeding the plants
    d) Adding fertilizer
20. __________ is an advantage of using biological pest control.
    a) It is cheap
    b) It is fast
    c) It is eco-friendly
    d) It is harmful to humans

Part C: Theory Questions

20 Short-Answer Questions

1. What are the effects of weeds on crops and farmers?
2. How do pests affect crop growth and production?
3. Name three methods of controlling pests.
4. What is the role of pesticides in pest control?
5. Why is biological control important for managing pests?
6. Describe how setting traps can help reduce pest populations.
7. What are the disadvantages of using chemical pesticides?
8. What is the difference between piercing and sucking pests and burrowing pests?
9. How does using biological control help maintain a healthy farm environment?
10. Give an example of a weed that can be harmful to crops.
11. How can farmers use pesticides safely?
12. What are the advantages of using traps to control pests?
13. How does crop rotation help in controlling pests and weeds?
14. How can farmers avoid the damage caused by pests on their farms?
15. Describe one biological control method and its effectiveness.
16. Why is early pest identification important?
17. How does using natural predators help control pests on a farm?
18. Why is it important to remove weeds from a farm?
19. What are some signs that pests have damaged crops?
20. How does setting traps help in controlling rodents on a farm?

Part D: True or False Questions

20 True or False Statements

1. Weeds only affect the appearance of the farm. (False)
2. Pests can spread diseases to crops. (True)
3. Chemical pesticides are always safe for the environment. (False)
4. Biological pest control uses chemicals to kill pests. (False)
5. Traps can be used to catch insects and rodents. (True)
6. Hand weeding is a common method of controlling weeds. (True)
7. Pesticides are effective immediately after application. (True)
8. Biological control methods are harmful to the environment. (False)
9. Weeds help increase crop yield by providing shade. (False)
10. Aphids are an example of a piercing and sucking insect pest. (True)
11. Chemical control methods are the only way to manage pests. (False)
12. Ladybugs are used to control aphids on crops. (True)
13. Traps can be harmful to the environment. (False)
14. Weeds are beneficial to crops in all cases. (False)
15. Pesticides should be used carefully to avoid harming beneficial insects. (True)
16. Crop rotation is a biological pest control method. (False)
17. Biological pest control is always fast and effective. (False)
18. Using pesticides can damage the soil and water. (True)
19. Pests can be controlled using both chemical and biological methods. (True)
20. Traps are a mechanical method of pest control. (True)

Part E: Fill-in-the-Gaps Questions

20 Fill-in-the-Blank Questions

1. Weeds compete with crops for __________, water, and nutrients.
2. __________ insects damage crops by sucking the juices from plants.
3. __________ is a common method used to control weeds on a farm.
4. Pesticides are __________ that are used to kill or repel pests.
5. __________ control uses natural predators to control pest populations.
6. Weeds can reduce __________ yield and harm the farm.
7. __________ is a common pest that feeds on plant juices.
8. __________ is a disadvantage of using chemical pesticides on a farm.
9. Setting __________ is a method used to trap and kill pests.
10. __________ is a method of controlling pests by using chemicals.
11. __________ insects create holes or burrows in plants and soil.
12. Biological pest control is __________ and eco-friendly.
13. __________ can damage crops by spreading diseases.
14. Using __________ can help farmers control pest populations without harming the environment.
15. __________ rotation helps in controlling pests and improving soil health.
16. Traps are used to catch __________ and prevent damage to crops.
17. Pesticides can harm __________ insects, which are helpful to crops.
18. Weeds are __________ plants that grow where they are not wanted.
19. __________ pests, like termites, cause damage by burrowing into plants or soil.
20. Using __________ control methods is safer for the environment.

This revision exercise provides a comprehensive review of the topics covered in Agricultural Science during the second term. It helps pupils strengthen their understanding of key concepts and prepares them for their exams.