What is Soil Made from
How many things is Soil made of?
4
What is Decomposition
This soil is high in nutrients and holds the most water
What is clay
Why are additives used in soil?
To improve quality of soil and help plants grow
How many layers of soil are there
There are 5 layers of soil
This is tiny pieces of rotted plants and animals
What is Humus
To support plant-life
What is a loam a mix of?
Sand, Silt and clay
What is an additive
This layer has big rocks in it
What is bedrock
What are the 4 components of soil
Minerals and Rocks, Air, Water and Organic Material
How do framers use soil?
To grow crops.
List the 4 types of soil
Silt, Sand, Clay and Loam
What additives are harmful to soil
Pesticides, Herbicides and Salt
This layer is made of Sand, Silt and Clay
What is subsoil?
This has dead plants and animals that have been broken down
What is Organic Matter
How does erosion happen?
When Topsoil is removed by wind and water
This is soil is made of tiny pieces of rock and and does not hold water well
What is sand
What is Fertilizers
Made of minerals and plants roots grow in this layer
What is Topsoil
Holes is soil are filled with this
What is Air?
Clay is used to make
Pottery and bricks
When something is worn away due to water, air or changes in temperature over time.
What is Weathering
What do pesticides and herbicides kill?
Insects and weeds
Worms, insects, etc.