Rivers – Find the odd one out Key word Definition Meander Channel Bed and banks A bend in a river Where the river normally flows Bed is the bottom and banks are the sides of the river Flat ground to the side of the river which is covered by water when it floods Natural raised embankments to the side of the river channel Where a river drops over a hard layer of rock The steep sided valley created below a waterfall as it erodes upstream The deep pool created below a waterfall The resistant rock which does not erode causing the waterfall to form below The inside of a meander where smaller sediment is deposited Planting trees to increase interception by leaves and reduce flood risk The outside of a meander where erosion occurs, wearing away the bank The cut off meander left after the river breaks through the neck of a meander Deposition at the mouth of a river causes a build up of sediment Where a river splits up into several channels, across features like deltas Where a river meets the sea Where a river starts, normally in the highest part of the catchment area Floodplain Levees Waterfall Gorge Plunge pool Hard rock layer Slip off slope / point bar Afforestation Undercut bank Ox-bow lake Delta Braiding Estuary / mouth Source Upper, middle and lower course Watershed Drainage basin Catchment area Tributary Confluence Stream density Solution Abrasion Hydraulic action Attrition Traction Saltation Suspension Bedload Deposition Erosion Sediment Discharge (cumecs) Interlocking spurs Headward erosion Vertical erosion Lateral erosion Flood basin Three different stages of the river from source to mouth The boundary of the catchment or drainage basin The area of land a river collects its water from Same as drainage basin A smaller river which will join a larger one The point where a tributary meets a river The number of rivers in a given area. The more rivers there are, the quicker a river normally responds to flooding Erosion by dissolving of bed and banks Erosion by stones in the river hitting the bed and banks Erosion by the force of the water Erosion of bedload by rubbing together, makes it more rounded and smaller Transportation of large load by rolling along the bed Transportation of medium load by bouncing along the bed Transportation of small load by floating in the river Sediment on the river bed. Load is sediment being carried by the river When load or sediment is dropped to the bed of the river When the bed or banks are worn away The material found in a river or on a floodplain (stones, sand etc…) The volume of water in the river (measured in cumecs or 1m³ per second) The valley sides which appear to overlap in the upper course part of a river When a river is eroding back upstream (e.g. a waterfall gorge) When a river is eroding down (e.g. a V-shaped valley in the upper course) When a river is eroding sideways (e.g. a meander) An areas of land that can be used to store flood water to slow flooding in the main channel for a short period of time Circle the odd one out Meander Slip off slope Undercut bank Plunge pool Saltation Hydraulic action Traction Suspension Floodplain Levees Interlocking spurs Wide Valley Floor Gorge Plunge pool Headward erosion Lateral erosion Large angular bedload Ox bow lake Lateral erosion deposition Delta Upper course Lower course Deposition Boscastle Rhine Niger Sheffield Rising limb Base flow Afforestation Lag time Flood basin Embankments Dam Expanding urban areas Sediment Niagara Falls Bedload Deposited material Explain why it’s the odd one out