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Confluence
Where two rivers meet and join to form one larger river.
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Drainage basin
The area of land drained by a river and its tributaries.
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Estuary
The point at which a river begins to meet the sea. The river will be tidal, meaning that it will have both salt water and fresh water in it.
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Evaporation
Water that is warmed, usually by the sun, so that it changes into a gas (water vapour).
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Evapo-transpiration
The combination of evaporation and transpiration
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Condensation
The cooling of a gas so that it changes into a liquid, for instance as water vapour cools, it condenses to become water droplets, which, when heavy enough, fall as rain.
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Infiltration
The downward movement of water that seeps into the soil or a porous rock
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Mouth
The end of the river, where it meets the sea, or a lake
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Overland Flow
When water flows over the surface of the ground. This occurs for a number of reasons: the soil may be saturated and therefore be unable to absorb any more water; the underlying rock may be impermeable or the ground may be frozen.
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Percolation
The movement of water through the soil or underlying porous rock. This water collects as groundwater.
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Precipitation
Waterfalling to Earth in any form: e.g. rain, sleet, hail, snow, and dew, all are encompassed by the term precipitation.
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Throughflow
the movement of water with in the soil sideways, towards the river
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Transpiration
The water loss from vegetation into the atmosphere
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Tributaries
rivers running into the main one, that form part of the same drainage basin system
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Watershed
The imaginary dividing line between neighbouring drainage basins
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Other cards in this set

Card 2

Front

The area of land drained by a river and its tributaries.

Back

Drainage basin

Card 3

Front

The point at which a river begins to meet the sea. The river will be tidal, meaning that it will have both salt water and fresh water in it.

Back

Preview of the back of card 3

Card 4

Front

Water that is warmed, usually by the sun, so that it changes into a gas (water vapour).

Back

Preview of the back of card 4

Card 5

Front

The combination of evaporation and transpiration

Back

Preview of the back of card 5
View more cards

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