Geography Y10 Week 2 Rivers Definitions homework. Learn the definitions and draw an image for each in the 3rd column. Test: Tues 22nd Sept pd 6 Ox-bow lake a meander that has been cut off from the main river channel and abandoned. Point bar sand and gravel deposited on the inside of a meander bend. Solution/corrosion chemical reaction occurs when slightly acidic water dissolves calcium, breaking down rock such as limestone. Suspended load smaller fragments of material carried in the flow of the river. Transportation the carrying of material by the river. This material is known as its load. Vertical erosion downward erosion of the river bed. Waterfall a place on a river where the water flows vertically. Weathering breaking up of rocks by the action of weather, plants, animals and chemical processes. For further help try GCSE Bitesize - Rivers