Most knowledgeable slide. It is based on types of soil. I think more children learn from this slide. May be comes help projects. Thank you!

2.  Soil is a mixture of minerals, organic matter, gases,
liquids, and countless organisms that together support life
on Earth. Soil is a natural body called the pedosphere
which has four important functions: it is a medium for
plant growth; it is a means of water storage, supply and
purification; it is a modifier of Earth's atmosphere; it is a
habitat for organisms; all of which, in turn, modify the soil.
 Soil is called the "Skin of the Earth" and interfaces with its
lithosphere, hydrosphere, atmosphere, and biosphere.
The term pedolith, used commonly to refer to the soil,
literally translates 'level stone'. Soil consists of a solid
phase of minerals and organic matter, as well as a porous
phase that holds gases and water. Accordingly, soils are
often treated as a three-state system of solids, liquids,
and gases.[5]

3.  Clayey soil is made of a relatively higher
proportion of fine particles. Unlike sandy soils,
these soils have very less space between
particles. Because the particles are smaller in
size, water can be trapped in the tiny gaps
between them. Clay soils are heavy and hold
more water.

4.  Loamy soil is a mixture of sand, soil and silt. Silt
particles are present between sand and soil
particles. It also contains humus, and is, therefore,
considered the best for the growth of plants. The
percolation rate is between that of sandy soil and
clay soil.

5.  Sandy soil is made of greater proportion of big
particles like sand. They cannot fit closely
together. So, there are large spaces between
them. These places are filled with air. Therefore, in
this type of soil, water absorption is very high as
the water passes quickly through these spaces.
These soils are light, well aerated and dry.

6.  Firstly, three different fine earths, from the “Clay”,
“Silt Loam” and “Sandy Loam” soil texture classes
were mixed with staggered proportions of a quartz
gravel (the shape of which was subrounded to
rounded, average weighted diameter 6 mm).

7.  Climatic factors as well as the components of the soil
determine the types of vegetation and crops that grow in
a particular area.
• Cereals like wheat and gram are grown in clay and
loamy soils, because these soils have better water
retention capacity.
• Soils rich in clay and organic matter with good water
retention capacity are ideal for paddy.
• Loamy soils, which drain water easily, are suitable
for lentils and other pulses.
• For cotton, loamy or sandy soils are more suitable,
because of their water draining and air logging capacity.
• Clay soils are rich in humus and fertile. These soils
are very good for wheat.

9.  SOMIL ARORA
 CLASS 7B
 ROLL NO.: 3