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What is soil made from? | Year 3 Science PDF Download

What is Soil?

We can find soil in various locations as it plays a crucial role for nearly all plants. Soil provides support to plants and contains essential nutrients for their growth. Let's explore the different types of soil.
What is soil made from? | Year 3 Science

What is Soil Made From?

Soil is a combination of minuscule particles that are invisible to the naked eye, along with decaying organic matter, rocks, air, and water. 

  • Particles: Soil comprises tiny particles that are too small to be seen without a microscope.
  • Decaying Matter: Dead and decomposing plants and animals contribute to the organic content of soil.
  • Rocks: The mineral component of soil comes from the breakdown of rocks over time.
  • Air: Pores in the soil allow for the circulation of air, which is vital for plant roots and soil organisms.
  • Water: Soil holds water necessary for plant growth and serves as a medium for nutrient transportation.

What is soil made from? | Year 3 Science

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Types of Soil

Different soils have various properties based on their composition:

  • Sandy Soil: Sandy soil is characterized by its pale color and large particles, creating numerous small air gaps. This type of soil allows water to drain through easily, resulting in a typically dry feel.
  • Clay Soil: Clay soil is sticky with small particles, containing minimal air gaps. Water does not drain easily through clay soil due to its compact nature.
  • Chalky Soil: Chalky soil, appearing as a light brown soil, facilitates quick drainage of water through it.
  • Peat Soil: Peat soil is devoid of rock particles and is composed of decomposed plants, making it dark, crumbly, and rich in essential plant nutrients.

Soil is home to a variety of minibeasts (small animals without backbones) and microorganisms (microscopic organisms).
What is soil made from? | Year 3 Science

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FAQs on What is soil made from? - Year 3 Science

1. What are the main components of soil?
Ans. Soil is primarily made up of minerals, organic matter, water, and air.
2. How does soil form?
Ans. Soil formation occurs through the weathering of rocks over time, combined with the decomposition of plant and animal material.
3. Why is soil important for plant growth?
Ans. Soil provides essential nutrients and minerals for plants, as well as a medium for root growth and water retention.
4. How does soil quality affect agriculture?
Ans. The quality of soil directly impacts crop productivity, as it influences nutrient availability, water retention, and overall plant health.
5. What are some common practices to improve soil health?
Ans. Common practices to enhance soil health include crop rotation, cover cropping, and adding organic matter through compost or manure.
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