Transportation, Erosion and Deposition

Traction

Larger load of heavy pebbles rolled along river bed - near river source

Saltation

Pebbles bounced along river bed

Suspension

Lighter sediment carried within water - depending in speed and near the mouth of river

Solution

Transport of dissolved chemicals - material carried in dissolved water

Abrasion

Pebbles grind and erode from hitting river bed - sand paper effect which smooths rocks

Solution

Water dissolves certain rock types - limestone

Attrition

Rocks bang together - become smaller and rounder from breaking apart

Hydraulic action

Erodes from force of water - hits bed and air gets trapped in cracks which breaks the rock