WorksheetsSoil
Total questions: 32
Worksheet time: 17mins
The ___ Horizon: This layer is the upper layer of soil. It is composed of organic material. This is the layer you see when you walk outside.
A
C
B
O
The ___ Horizon: This layer is known as the subsoil. It is just below the topsoil and above the bedrock. This layer holds more water than the topsoil.
B
A
C
O
The ___ Horizon: This layer is known as the topsoil. It is rich in organic material. Is very porous and holds plenty of water and air. This is where seed germination takes place.
B
O
A
C
The ___ Horizon: This layer is compacted and resembles cement. There are tons of huge rocks.
A
R
B
O
The ___ Horizon: This layer is not always found. This layer is mainly found in forested areas.
O
B
C
E
Soil Conservation...
Is a hobby
Gets rid of soil
Never result in soil loss
Reduces the amount of soil loss
When soil is washed away, nutrients necessary for plant growth (food) are lost.
Soil conservation importance
Soil conservation hobby
Soil conservation enjoyment
Soil erosion
What is one method of reducing soil erosion?
Overgrazing a pasture area
Do nothing
Cover bare ground with grass
reduce ground cover in designated areas
A naturally occurring mixture of organic ingredients, water, air, and microorganisms
Topsoil
Dirt
Humus
Soil
When it comes to soil composition, water makes up __% of soil.
5%
25%
20%
45%
When it comes to soil composition, air makes up __% of soil.
20%
45%
5%
25%
When it comes to soil composition, Organic materials make up __% of soil.
45%
20%
5%
25%
When it comes to soil composition, minerals make up __% of soil.
45%
5%
20%
25%
earth worms, decaying leaves, fallen trees and more are considered...
humus in a soils ecosystem
Dead materials in a soil ecosystem
organic materials in soil ecosystem
geological matter
Sand, Silt and Clay are all apart of ___
Soil composition
Soil porosity
Permeability
Soil texture
Soil texture is the way the soil
is colored
feels
Looks
In soil texture, which component is the softest materials.
silt
clay
sand
In soil composition, which component is the largest particle
silt
clay
sand
In soil composition, which component is the smallest. It feels sticky and hard to squeeze
silt
clay
sand
The ability to hold water is known as the soil's ___
Permeability
humus
porosity
saturation rate
The ability for soil's ability to pass water through is...
permeability
humus
porosity
saturation rate
The point where no more water can be absorbed into the soil. Causes flooding
Permeability
humus
porosity
saturation rate
Time, parent material, lay of the land, living organisms and climate are all considered...
Factors that lead to soil permeability
factors that form our soil
factors that lead to soil erosion
Factors that prevent erosion
The ability to support plant growth
Humus
Soil
Nutrients
Dirt
The main three nutrients when it comes to plant growth are...
Nitrogen, Potassium, Boron
Phosphorus, Potassium, Manganese
Nitrogen, Phosphorus, Calcium
Nitrogen, Phosphorus, Potassium
Macronutrients are...
Chemical elements required in large amounts for plant growth
Chemical elements required in small amounts for plant growth
Micronutrients are...
Chemical elements required in large amounts for plant growth
Chemical elements required in small amounts for plant growth
When it comes to plants, nutrients are dissolved by water and absorbed by the plants...
Stem
Roots
Leaves
Flowers
How much of the earth's surface is ideal for growing crops?
10%
23%
40%
11.2%
Thank to best management practices, farmers can actually use ___% of land to grow crops
10%
11.2%
40%
23%
Term?: ______ management practices that farmers and people can do to improve the environment and land capability.
Correct
Awesome
Good
Best
The ___ Horizon : This layer is void of any organic matter. It is made up of broken bedrock.
A
C
E
B
