What percent of the Earth's surface is covered with water? where is most of it found?
70% & oceans.
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3 of the water's most unique qualities
LIquid, Solid, & gas
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Substances in order of least to greatest permeability
Clay, Silt, plastic, sand, & gravel
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what is the difference between direct & indirect use? give an example of both.(direct)
Direct-using a faucet or hose(example: bathing, drinking, & cooking.
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what is the difference between direct & indirect use? give an example of both.(indirect)
indirect use- water used to produce the goods & services(example: cotton, paper, & more.
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Porosity
amount of space available to hold water(depends on size & sorting of particles.
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Permeability
Ability of rock or soil to allow water to flow through it
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saturated zone
the area of permeable rock or soil that is totally filled or saturated with water
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unsaturated zone
both oxygen & water fill the spaces between sediment that is not saturated
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Water table
The top of the saturated zone & separates it from the zone of aeration.
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Aquifer
zones of Earth's crust in which water can easily move.
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Artesian well
Well from which water flows on its own without pumping
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Watershed
the entire land area that drains to a given river, stream, wetland, or lake.
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Divide
the boundary of a watershed that is characterized by the highest point in a particular region.
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Groundwater
the water that is beneath Earth's surface
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Heat capacity
The amount of energy required to raise the temperature of a substance
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Infiltration
the movement of surface water into rock or soil through cracks and pore spaces
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Evaporation
the process by which water is converted from a liquid to a gas or vapor.
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Advection
the transfer of heat or matter by the flow of a fluid, especially horizontally in the atmosphere or the sea.
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Condensation
The change of state from a gas to a liquid
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Precipitation
water released from clouds in the form of rain, freezing rain, sleet, snow, or hail
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Surface runoff
water that flows over land surface rather than infiltrating into the ground
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Transpiration
the release of water vapor to the atmosphere by plants
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Adhesion
attraction between molecules of different substances
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Cohesion
an attraction between molecules of the same substance
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Surface tension
property of liquid surface that allows it to resist an external force.
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Water as a solvent
a substances capable of dissolving other polar molecules & ionic compounds.
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Mouth(of river)
place where a stream or river flows into a larger body of water
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Tributaries
small river or stream that flows in to a larger river or stream; a branch of the river
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Erosion
a process that wears away surface materials & moves them from one place to another.
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Deposition
Process in which sediment is laid down in new locations.
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River upper course
when a river runs over alternating layers of hard & soft.
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River middle course
found on gently sloping land, & is typically identified by it's meandering path( the sweeping side to side curves.
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River lower course
has a low energy level & the process of deposition takes place.
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Delta
flat, low-lying land plain that sometimes forms at the mouth of a river from deposits of sediment.
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Why is sediment deposited at the mouth of a river?
It's because of the river slows down at the mouth, so it doesn't have the energy to carry all the silt, sand, & clay anymore.
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Summarize the erosion & deposition characteristics of the 3 different courses of a river. (upper course)
Vertical erosion is the main process in the upper course of the river, as the river wants to get to sea level. This process created 5 unique features; a v-shaped valley, interlocking spurs, gorges, & rapids
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Summarize the erosion & deposition characteristics of the 3 different courses of a river. (middle course)
The river has more energy & a high volume of water. The gradient is gentle & lateral(sideways) erosion has widened the river channel. It created wider, shallower valleys, meanders & oxbow lakes.
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Summarize the erosion & deposition characteristics of the 3 different courses of a river. (lower course)
The river has high volume & a large discharge. The river channel is now deep, wide, & the landscape around it is flat, As a river reaches the end of its journey , energy levels are low & deposition takes place. It created wide flat-bottomed valleys, floodplains, & deltas.
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explain the relationship between river/stream velocity & the size of sediment that can be transported.
Both the size & amount of sediment transported in a stream are determined by the speed of the stream. Higher velocities equal the stream has more kinetic energy, As a result, higher velocities carry larger sediments.