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Chaper 6 - The Water Cycle - KB
Terms in this set (46)
The Water Cycle
The unending circulation of Earth's water supply
Water that flows over the land's surface rather than seeping into the ground
The process of converting a liquid to a gas
Any form of water that falls from a cloud
THe movements of surface water into rock or soil through cracks and pore spaces
Earth's water cycle is balanced in that each year the average amount of precipitation that occurs over earth is equal to the amount of water that evaporates.
A stream's ability to pick up and move material depends on:
The five factors that determine the velocity of a stream
4. Roughness of channel
The course that water in a stream follows
Volume of water flowing past a certain point in a given unit of time
Steepness of a stream channel
Distance that water travels in a period of time
T or F: A stream's discharge increases between the headwaters and mouth of the stream
T or F: From its headwaters to its mouth, a stream's gradient increases
The lowest point where a stream can erode
The bend of a stream
How do streams erode their channels?
abrasion, grinding and soluble material
The material a stream carries in solution
The large, solid material a stream carries along its bed
T or F: As a stream velocity decreases, its competence increases.
The maximum load a stream can carry.
T or F: Most streams carry the largest part of their load in suspension.
Measures the largest particles a stream can transport
When a stream flow decreases to below the critical settling velocity of a certain size particle
How does a delta form?
When a stream enters a lake or ocean.
What shape will a stream valley have if its primary work has been downward erosion cutting toward base level?
Narrow, v-shaped valley
The flat valley floor onto which it overflows its banks during flooding
Earthen mounds built on river banks
structures that store floodwater and let it out slowly
Mostly caused by rapid snow melt and storms
The land area that contributes water to a stream
T or F: Groundwater moves faster through sediment with large pore spaces than through sediment with small pore spaces
You are doing grey!
tere r onlay three slides lefta keepa wokin sodier boy ... dat supaman doe
What are two things that threaten groundwater supplies?
depressions common to karst areas
T or F: Areas with karst topography typically have irregular terrain
True dat Ms. Brewer.. what what!
Zone of Saturation
Zone where all open spaces in sediment and rock are completely filled with water
Water underground in the zone of saturation
The upper level of the saturated zone of groundwater
The volume of open spaces in rock or soil
A measure of materials ability to transmit fluids
A rock or soil through which ground water moves easily
I think we've got it.
Where does all the water on earth come from?
The water cycle!
What happens to the water on earth?
Streams and rivers flow to the oceans which creates erosion
What happens to water below the surface?
Much of the water in soil seeps downward until it reaches the zone of saturation
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