Class 4 Soil & Its Types Q & A Worksheet

Chapter – Class 4 Science Chapter soil

Class 4 Soil & Its Types Q & A Worksheet | class 4-soil questions and answers for class 4

Fill in the blanks

  1. The process of soil formation is called ………………
  2. The layer below the topsoil in soil profile is called
  3. ………………..soil become lumpy and sticky when mixed with water
  4. ………………best for growing plants

Solutions:- 

  1. Pedogenesis
  2. Subsoil
  3. Clayey
  4. Loamy

 

Answer the following questions

What is soil?

The top layer of earth surface is called soil it consists of sand remains of dead plants and animals minerals water and air.

What is the composition of soil?

Soil is made up of different types soil particles

Sand :- largest soil particles

Silt :- smaller than sand but bigger than clay

Clay :-Very tiny soil particles

Soil also contains small stones minerals and humans as well as air and water

Define Types of soil ?

There are mainly three types of soils present in our environment

Sandy

It has more sand particles then clay it is rough and non sticky

Loamy soil

In this type of soil the proportion of sand clay and silt are same it is the best soil for growing plants also rich in nutrients and humus

Clay soil :-

this soil contain maximum clay particles the soil is smooth when dry and sticky when wet.

Define soil profile?

Soil profile consists of three layers

Top soil :- very fertile soil

Subsoil :- contains stones and rocks

Bedrock :- contains large pieces of rocks

What is soil erosion?

The removal of the upper layer of soil by wind and water is called soil erosion.

What are the causes of soil erosion?

The main cause of soil erosion are strong wind, cutting down trees, heavy rainfall and flood.

How soil can be conserved?

Soil can be conserved by planting more trees, building dams grazing and terrace farming.

Also Read :-

Science Olympiad Sample Papers for Class 4

science quiz questions |online-shiksha

What are Nutrients and Food – Grade 4 EVS/Science

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