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Rivers Lakes Freshwater Facts
Groundwater
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A smaller stream or river that flows into a main river
What is a tributary?
Category 1Question 1
The land area that supplies water to a river system.
What is a watershed?
Category 1Question 2
The many small streams that come together at the source
of a river.
What are headwaters?
Category 1Question 3
This is made up of a river and all its tributaries
together. (Two words).
What is a river system?
Category 1Question 4
The broad, flat valley through which a river flows.
What is a flood plain?
Category 1Question 5
Plants grow throughout a pond because the water is shallow enough for this to
reach the bottom.
What is sunlight?
Category 2Question 1
Originally a looping curve in a river, this small body of
water may be cut off during dryer seasons.
What is an oxbow lake?
Category 2Question 2
A manmade lake that stores water for human use, among
other things.
What is a reservoir?
Category 2Question 3
A seasonal change that refreshes the supply of
nutrients throughout a lake.
What is lake turnover?
Category 2Question 4
The process in which levels of nutrients build up in a
lake, oftentimes leading to the lake drying up and becoming a meadow.
What is eutrophication?
Category 2Question 5
Water that flows over the ground surface rather than
soaking in.
What is runoff?
Category 3Question 1
Particles of rock and soil that are picked up and
moved through the processes of erosion and
deposition.
What are sediments?
Category 3Question 2
Although these are found in the salty ocean water, they
actually consist of fresh water.
What are icebergs?
Category 3Question 3
Huge masses of ice and snow that move slowly over
the land.
What are glaciers?
Category 3Question 4
An area of land that is covered with a shallow layer of water during some or all
of the year.
What is a wetland?
Category 3Question 5
An underground layer of rock or sediment that holds
water.
What is an aquifer?
Category 4Question 1
New water that enters an aquifer.
What is recharge?
Category 4Question 2
Places where groundwater bubbles or flows out of
cracks in the rock.
What is a spring?
Category 4Question 3
Having pores or openings that permit liquids or gases
to pass through.
What is permeable?
Category 4Question 4
Category 4Question 5
An underground area of permeable material that is
totally filled with water.
What is the saturated zone?
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