SOIL
the amount of each kind of particle in a soil sample
texture
the dropping of sediment and rocks in a new location
deposition
the process of rock changing from one type to another is called __________________
the rock cycle
abrasion
mechanical
Fertile soil that has equal parts of sand and silt combined with about half as much clay is called __________________.
loam
layers of soil
horizons
the sediment that a stream carries
load
unweathered rock that influences the soil above it
bedrock
chemical
What is the primary force behind erosion?
gravity
small particles of weathered rocks and minerals
sediment
a pile of rocks and soil deposited by a glacier
moraine
What changes rocks into new substances?
Chemical Weathering
frost heaving
mechanical
What forms when unmelted snow gets compacted down into ice?
glacier
the largest kind of particle in soil
sand
the process of wind picking up loose sediment and carrying it away
deflation
The process of breaking down rocks is called ______________________.
weathering
oxidation
chemical
What is a rockslide?
Erosion caused by gravity
What contains weathered minerals and some nutrients from the humus?
Subsoil
an area of sediment deposited at the mouth of a river
delta
________________ occurs whenever rocks rub against each other.
Abrasion
chemical
Is pressure release a form of mechanical or chemical weathering?