Lipold Weathering and Soil 2019
Terms in this set (25)
the mechanical and chemical processes that change Earth's surface over time
The type of weathering in which rock is physically broken into smaller pieces
The process that breaks down rock through chemical changes. The rock is changed into new materials.
Process that splits rock when water seeps into cracks, then freezes and expands.
The process of breaking down rock by grinding or friction. Can be caused by wind, water, glaciers.
The amount of space on the outside of an object
most common cause of chemical weathering, makes rocks dissolve
polluted rain that causes chemical weathering
oxygen combines with iron and makes the rock soft and crumbly
A mixture of mineral particles and organic material that covers the land, and in which terrestrial plants grow.
small holes and spaces in soil
The process of changing once-living material into dark-colored organic matter.
materials that have never been alive
The starting material of soil.
the average weather of an area
the shape and steepness of the landscape
all of the organisms that live in a region
layers of soil formed from the movement of the products of weathering
the top, and organic, layer of the horizon
organic matter from the decay of roots and the action of soil organisms. This horizon is excellent for plant growth.
the layer formed by water depositing clay and other materials below the A-horizon
the unweathered, bedrock layer below the c-horizon
How fast water enters soil
A measure of soil's ability to support plant growth.
layer of weathered parent material