KEY_WORDS_-_rivers54 KB10/04/2014

advertisement
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
Download