WorksheetsSoil
Total questions: 17
Worksheet time: 9mins
Which of the following is NOT a property of soil that can be observed?
Composition
Texture
Particle Size
O2 given off
Soil Profile
What are soil layers called?
Rock
Horizons
Layers
Profile
How many layers does a mature soil profile contain?
2
3
4
5
What are the 3 main soil horizons for a mature profile?
topsoil, subsoil, parent material
humus, topsoil, subsoil
subsoil, parent material, bedrock
humus, topsoil, bedrock
What is the composition of topsoil?
sand, silt, clay
humus, silt, rocks
sand, rocks, minerals
humus, clay, minerals
In which horizon do most animals such as bugs live?
Humus
Topsoil
Subsoil
Parent Material
Bedrock
What is decayed organic material in soil?
topsoil
humus
subsoil
bedrock
What is the origin of clay, silt, and sand?
humus
bedrock
subsoil
topsoil
What does the size of the soil particles determine?
pH
mineral composition
texture
horizon posiition
What are loam, clay loam, silt loam, and clay?
Soil particle sizes
Soil Textures
Soil pH
Soil composition
What are soil particles larger than 2 mm called?
silt
fine
coarse
gravel
clay
What is permeability?
how freely water passes through soil
how much acid is in soil
the size of the soil particles
the composition of soil
What is the best pH for plants to grow?
4-6
7 only
5-7
6-8
What is a fertilizer that changes the pH and makes nutrients more accessible by plants?
silt
loam
nitrogen
lime
What's the composition of soil?
air, water, minerals
minerals, decayed organic materials, rock particles
air, water, decayed organic materials, rock particles, minerals
decayed organic materials, rocks particles, and minerals
Which layer is the parent material?
Horizon O
Horizon A
Horizon B
Horizon C
Horizon R
Which layer is the subsoil?
Horizon O
Horizon A
Horizon B
Horizon C
Horizon R
