Soil - Class 3 Science - New St. Mery English School

Soil is one of the most important natural resources on Earth. It is the top layer of the ground that helps plants grow. All plants get water and nutrients from the soil. Many animals like earthworms and insects also live in it. In this chapter, we will learn about different types of soil, how soil is formed, and why it is so important for living things. Understanding soil helps us take better care of our environment and grow healthy plants.

Soil - Class 3 Science - New St. Mery English School

What is Soil?

Ans:- The topmost layer of the earth where plants grow and many animals like earthworms and insects live in is called Soil.

How is soil formed?

Ans:- Soil is formed from rocks. It is a very slow process. Soil is formed by breaking down of rocks into small pieces by the action of wind, rain and sun's heat. This process is called weathering. It takes millions of years for rocks to form soil.

What does soil contain?

Ans:- Soil contains following substances

1- It contains small pieces of rocks.

2- It contains dead and decaying plants and animals matter called humus.

3- It contains water in between the spaces of soil particles.

4- It contains air that is trapped between the soil particles.

How many types of soil?

Ans:- There are three types of soil

1- Clayey soil

2- Sandy soil

3- Loamy Soil

What is Clayey soil?

Ans:- A type of soil that is very fine and does not have space for air between the particles and it can hold lot of water is called Clayey soil. It is sticky and good for making pots and toys.

What is Sandy soil?

Ans:- A type of soil that has big particles and trap alot of air between the particles. It is rough and does not hold water is called Sandy soil. It is found in desert or at seashores.

What is loamy soil?

Ans:- A type of soil that is the mixture of sandy soil and clayey soil is called loamy soil. It is brown in colour and rich in humus. It contains the right amount of air and water. It is the best soil for plants to grow.