Occurs when water seeps into cracks in rocks, freezes, expands and breaks off pieces of rocks.

Process of rock being eroded away from above an igneous rock body

When rock changes into one or more new compounds

When rocks or rock fragments fall freely through the air.

A block of material moves suddenly along a flat, inclined surface

Downward movement of a block of material along a curved surface

Slowest type of mass movement

Type of climate that has the greatest chemical weathering

The 4 main components of soil

Most organic matter in soil comes from where?

Layer below the C horizon

Five factors that affect soil formation

Slope with an angle 25 to 40 degrees

Loose partially decayed organic matter and mineral matter

Clay and nutrients transferred from the layer above

Partially weathered parent material

How are chemical and mechanical weathering related?

The four triggers of mass movment

What will happen to a slope if the vegetation is removed from it?

When different parts of a rock weather at different rates.

Three factors that affect the rate of weathering

How will a soil that has been forming for 10 years look compared to one that has been forming for 100 years?

What is the main driving force behind all mass movements?

Which directions do mass movements occur?

Rocks are broken into smaller pieces, but they don't chemically change.

Transfer of rock and soil downslope due to gravity.