Soil Flashcards
Rocks formed by sediments deposited by wind, water or ice under pressure and heat.
Igneous
Rocks formed by pre-existing rocks that go through a chemical change due to heat and pressure.
Metamorphic
List the factors that cause changes to a soil profile over time.
Additions, losses, translocations, transformations.
Which soil has a higher water holding capacity?
Silt
What soil contains equal parts of sand, silt and clay?
Liam
Term for layers of natural material in the earths surface, containing both organic and inorganic materials that and is capable of supporting plant life
Topsoil
Term for the process of breaking down rocks and minerals through the actions of weather.
Erosion
Term for matter that is dead plant and animal materials in various stages of decay.
Humus
Where is carbon stored?
In soil
What type of erosion results in runoff that causes small but visible tracks and traces, like small gullies?
Rill erosion
What are the three main textures that make up the soil texture triangle?
Sand, clay, silt
Why are soils important to humans?
We grow food and trees which give us life
List three different ways that soil is formed through weathering.
Water, ice, wind
List four factors influencing soil erosion.
Slope, climate, native vegetation, parental material
The oldest horizon in the soil profile.
R
