Erosion - The breakdown AND removal of rocks, Drainage basin - The area of land drained by a river, Cross valley profile - A series of diagrams show how the river valley changes from source to mouth, Long profile - A diagram showing the gradient of the river from source to mouth, Hydraulic action - The the force of water against the banks and bed of a river, causing the rock to break apart, Abrasion - when rocks grind along the bed or banks, much like sandpaper, Attrition - When rocks and pebbles carried by a river collide with each other, breaking apart and becoming smaller and more rounded, Solution - A type of erosion that occurs when acidic water dissolves certain types of rocks, such as chalk and limestone, Waterfall - A steep drop in river, found where hard rock is on top of soft rock, V - shaped valley - A steep valley in the upper course formed by vertical (downwards erosion, Meander - A bend in the river. Erosion occurs on the outside bend whilst deposition occurs on the inside bend., Floodplain - An area of low-lying land next to a river which is prone to flooding, Levee - naturally raised river banks found on the sides of a river channel that is prone to flooding. They are formed after a flood deposits sediment on the flood plain close to the river, Estuary - The tidal section of a river where it meets the sea. Deposition is dominant here, forming mud banks, Flood - When water overflows a river's banks and onto the surrounding land, Hydrograph - A graph that shows how a river responds to rainfall over time, Hard engineering - Building artificial structures which try to control natural processes e.g. dams, channel straightening, embankments, Soft engineering - A sustainable and natural way to manage the potential for river flooding e.g. floodplain zoning, afforestation and river restoration, Banbury - Our flood case study, Deposition - When a river loses energy and drops the material it has been carrying,

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