Basic Science Primary 4 Questions

Subject: Basic Science
Class: Primary 4

1. What is soil?..………………
2. List two types of soil.………………
3. Mention two uses of soil.………………
4. Mention two soil constituents.…..………………
5. What is soil preparation?……………………….
6. Mention two ways to care for the crops…………………
7. What are weeds? …………………….
8. Mention two examples of weed.…..………………
9. What is weeding?..………………
10. 10 List two crops you know.…..…………………..
11. What is mixture?…..………………
12. Mention two examples of common mixtures.……..………………
13. What is technology?……..……………………
14. Mention two products of technology.………………
15. Mention two measuring instruments you know.……..………………

Class Activity Discussion :

1. What is soil?
   • Soil is the top layer of the Earth’s surface where plants grow.
2. List two types of soil
   • Clay soil
   • Sandy soil
3. Mention two uses of soil.
   • Soil is used for planting crops.
   • Soil is used for building materials like bricks.
4. Mention two soil constituents.
   • Minerals
   • Organic matter
5. What is soil preparation?
   • Soil preparation is getting the soil ready for planting by tilling, adding nutrients, and removing debris.
6. Mention two ways to care for the crops.
   • Watering regularly
   • Removing weeds
7. What are weeds?
   • Weeds are unwanted plants that compete with crops for nutrients and sunlight.
8. Mention two examples of weed.
   • Dandelion
   • Crabgrass
9. What is weeding?
   • Weeding is the process of removing weeds from the garden or farm.
10. List two crops you know.
    • Maize (corn)
    • Rice
11. What is a mixture?
    • A mixture is a combination of two or more substances that are not chemically combined.
12. Mention two examples of common mixtures.
    • Saltwater
    • Air
13. What is technology?
    • Technology refers to tools, machines, and methods used to solve problems or achieve goals.
14. Mention two products of technology.
    • Computers
    • Smartphones
15. Mention two measuring instruments you know.
    • Ruler
    • Thermometer

1. What is soil?
   • Soil is the top layer of the Earth’s surface where plants grow. It is made up of minerals, organic matter, water, and air.
2. What are two types of soil?
   • Clay soil: Heavy and holds water well.
   • Sandy soil: Light and drains water quickly.
3. What are two uses of soil?
   • Soil is used for planting crops such as vegetables, fruits, and grains.
   • Soil is used in construction for making bricks, ceramics, and pottery.
4. Name two soil constituents.
   • Minerals: Like sand, silt, and clay.
   • Organic matter: Decayed plant and animal materials.
5. What is soil preparation?
   • Soil preparation involves getting the soil ready for planting by tilling, adding fertilizers, and removing debris.
6. How can we care for crops?
   • Watering regularly and ensuring proper drainage.
   • Removing weeds that compete with crops for nutrients and sunlight.
7. What are weeds?
   • Weeds are unwanted plants that grow alongside crops and compete for resources.
8. Give two examples of weeds.
   • Dandelion: Common broadleaf weed.
   • Crabgrass: Grass-like weed with spreading growth.
9. What is weeding?
   • Weeding is the process of removing unwanted plants (weeds) from gardens or fields to promote the growth of desired plants.
10. Name two common crops.
    • Maize (corn)
    • Rice
11. What is a mixture?
    • A mixture is a combination of two or more substances that are physically combined but not chemically bonded.
12. Give examples of common mixtures.
    • Saltwater: A mixture of salt and water.
    • Air: A mixture of gases like oxygen, nitrogen, and carbon dioxide.
13. What is technology?
    • Technology refers to tools, machines, and methods used to solve problems or achieve tasks more efficiently.
14. Name two products of technology.
    • Computers: Devices used for processing and storing information.
    • Smartphones: Mobile devices that combine communication, computing, and multimedia capabilities.
15. What are measuring instruments?
    • Measuring instruments are tools used to quantify physical quantities such as length, temperature, and volume.

Comprehension and Grammar Questions for Primary 4 Students

1. What is soil? a) A layer of rocks b) The top layer of the Earth’s surface c) A type of plant d) A layer of water
2. List two types of soil a) Clay soil, rock soil b) Sandy soil, grassy soil c) Clay soil, loamy soil d) Wet soil, dry soil
3. Mention two uses of soil. a) Building houses, making clothes b) Planting crops, construction c) Making toys, painting pictures d) Cooking food, writing books
4. Mention two soil constituents. a) Rocks, air b) Minerals, organic matter c) Water, animals d) Trees, insects
5. What is soil preparation? a) Getting soil ready for planting b) Cleaning the house c) Playing in the garden d) Swimming in the river
6. Mention two ways to care for crops. a) Watering regularly, adding fertilizer b) Watching TV, playing games c) Sleeping late, skipping meals d) Driving cars, riding bicycles
7. What are weeds? a) Desired plants in the garden b) Unwanted plants in the garden c) Types of flowers d) Types of vegetables
8. Mention two examples of weed. a) Roses, sunflowers b) Dandelion, crabgrass c) Tomatoes, potatoes d) Carrots, onions
9. What is weeding? a) Planting new crops b) Removing unwanted plants c) Watering the garden d) Building a fence
10. List two crops you know. a) Wheat, sugar b) Maize (corn), rice c) Oranges, apples d) Fish, chicken
11. What is a mixture? a) A type of plant b) A combination of substances c) A type of animal d) A type of soil
12. Mention two examples of common mixtures. a) Saltwater, lemonade b) Rocks, water c) Air, stones d) Trees, flowers
13. What is technology? a) Tools, machines, and methods b) Trees and plants c) Animals and insects d) Rocks and minerals
14. Mention two products of technology. a) Computers, smartphones b) Fruits, vegetables c) Water, air d) Books, pencils
15. Mention two measuring instruments you know. a) Thermometer, ruler b) Cars, bicycles c) Plants, animals d) Birds, fish

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