A river that has multiple channels flowing downstream - often a river separated by lots of deposition.
braided river
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Where a river flows into a lake, reservoir, ocean, sea, etc.
mouth
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A curve in a river.
meander
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A curved lake formed by a cut-off meander
oxbow lake
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A low area of land between two hills/mountains.
valley
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The outline of a body of water, e.g. river.
channel
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At the lower course of a river, there is lots of deposition and sometimes so much that the ocean cannot carry it away so a mass of land is left by the mouth.
delta
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The mouth of a (Iarge) river
estuary
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Where a smaller river joins the main river, increasing the amount of water flowing.
confluence
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Where mainly erosion happens
upper course
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Where mainly erosion and transportation happens
middle course
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Where mainly deposition happens
lower course
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Where larger rocks roll along the bed of a river
traction
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Where smaller rocks bounce along the river bed
saltation
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Where soluble material is dissolved/broken up
solution
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Small and light particles are carried along in the river - they make the water look cloudy
suspension
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Dissolved material is carried along
solution
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The bedload acts like sandpaper on the base of the river, scraping and braking up the surface.
abrasion
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Rocks bang against each other and chip each other, rounding each other and wearing each other away.
attrition
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the force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.
hydraulic action
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The speed in a river
velocity
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Planting trees
afforestation
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Working with nature to reduce the risk of flooding
soft engineering
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Defending against nature to reduce flooding
hard engineering
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Where lots of rain falls over a long period of time
prolonged rainfall
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Where flash floods occur
storms
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Rock that doesn't soak up any water
impermeable rock
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Building with concrete near a river
building on the drainage basin
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Cutting down trees
deforestation
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Really dry soil that can't soak up water.
hard dry soil
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Soil that is too full with water and can't soak up any more
saturated soil
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Landforms which increase the amount of run off
steep slopes
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Other cards in this set
Card 2
Front
Where a river flows into a lake, reservoir, ocean, sea, etc.
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