| Soil Formation | Soli Layers | Soil Properties |
|---|---|---|
|
What is soil?
Soil is the top layer of the lithosphere.
It is a mixture of minerals, water, air and organic matter. |
5 layers
How many layers made up the soil?
|
texture, porosity, water retention capacity and color
What are the physical properties of the soil?
|
|
minerals, soil, water and organic matter
What is soil composition?
|
horizontal layers
What is another name for the layers of the soil?
|
exchange capacity, fertility, salinity
What are the chemical properties of the soil?
|
|
weathering
What is the process through soil is formed?
|
O Horizon
What is the top layer of soil, that is dark brown and rich in humus?
|
presence of humus and presence of living things
What are the biological properties of the soil?
|
|
Rain, wind and temperature changes
What are climatic factors that help during the soil formation?
|
Horizon
What is the layer with a large amount of humus and organic matter, made of rock fragments and minerals? Bacteria, worms, insects and fungi live there.
|
Their waste creates humus
What is the importance of the presence of living things in the soil?
|
|
They make it more fertile.
What is the function of organisms like worms when they move the soil?
|
Parent Rock
What is another name for the R Horizon?
|
decomposed organic matter that comes from plant and animal waste.
What is humus?
|
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