Soil Conservation Crossword

A chemical and physical process that breaks down rock at Earth's surface.
A matieral full of tiny, connected air spaces that water can seep through.
Geologic principle that the same geologic process that operated in the past to change Earth's surface.
Loose layer of dead plant leaves and stems on the surface of soil.
mixture of humus, clay and other minerals that forms the crumbly topmost layer of soil.
Layer of soil beneath the topsoil that contains mostly clay and other minerals.
Layer of soil that differs in color and texture from the layer above it or below it.
Management of soil to prevent its destruction.
Weathered material on Earth's surface in which plants can grow.
Thick mass of grass roots and soil.
Chemical change in which a substance combines with oxygen, as when iron oxidize, forming rust.
Anything in the enviorment that humans use.
Type of weathering in which rock is physically broken into smaller pieces.
Rich, fertile soil that is made up of about equal parts of clay.
Process that splits rock when water seeps into cracks, then freezes, and expands.
Dark- colored organic material in soil.
Measure of how well soil supports plant growth.
Process by which water ice, wind, or gravity moves weathered rock, or soil.
Area of Great Plains where wind erosion caused soil loss during the 1930s.
Soil organism that breaks down the remains of the organisms, and digest them.
Planting of diffirent crops in a field each year to mainain the soils fertility.
Plowing fields along the curves of a slope to prevent soil loss.
Soil conservation method in which the ead stalks from the previous years crops are left to hold the soil place.
Process that own rock through chemical changes.
Solid layer of rock beneath soil.
The grinding away of rock by other rock particles carried in water, ice, or wind.