Geography Vocab > Rivers/Water Cycle

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Terms in this set (...)

Evaporation
When a liquid turns into a gas
Evapotranspiration
When the plant absorbs water through its leaves
Condesation
When a gas cools and turns into a liquid
Precipitation
The name given to water, in any form that falls from the sky
Infiltration
When water soaks into the soil
Interception
When water does not reach the soil/ground as it is stopped by leaves/branches
Groundwater flow
Water that flows through the rocks underground
Surface run-off
Water that flows across the surface of the ground
Channel flow
Water that flows in rivers...usually into the sea
Impermeable
Surfaces which do not let water pass through e.g. concrete
Permeable
Surfaces that allow water to pass through e.g. soil
Saturated
When something cannot absorb any more water e.g. soil because it is too full of water
Percolation
When water seeps down into the berlock/groundwater/ground
Water table
Level of the groundwater
Throughflow
Water that travels through the soil/close to surface
Drainage basin
The area of land within which water drains into a particular river
Watershed
The boundry between one drainage basin
Mouth
Where a river flows into the sea
Tributay
A smaller river that flows into a bigger river
FloodPlain
The area most likely to get flooded
Source
Where the river starts
Confluence
Where two rivers, of similar size, join together
Erosion
The wearing away of rock by the movement of water or wind
Transportation
The movement of material carried by a river
Deposition
The laying down of the material a river has carried
Weathing
Rocks in the river banks that have already been broken down into stones and soil
Abrasion
Sand and stones in the river scrape the bed and banks, and wear them away
Attrition
When rocks and soil knock together and and wear each other away
Solution
When water dissolves soluble minerals from the river bank
Hydraulic action
When in a fast-flowng river, water is forced into cracks in the bank
Bed load
When the heavier material is carried along the bottom of the river
Suspension
When small, light particles of rock and soil are carried as a suspension
Traction
When the larger rocks and stones get rolled along the bottom of the river
Sediment
When the land gets flatter so the river slows down, so it drops some of its load as it is weaker