Surface water fun facts
how much of Earth’s water is freshwater
2.5%
where the mouth of a freshwater river meets the ocean.
estuary
Wells Tap Into It
Ground water
water that fills tiny gaps between soil and sediments underground
Groundwater
in the 1930's caused by weather, prolonged drought, and poor farming techniques was called what
The Dust bowl
Only what % of that water is available for living things?
1.2%
Water here is called “brackish” and is a mix of what
salt and freshwater
an area of land that drains into a particular body of water
Surface water
(Watershed)
Main use of groundwater
agriculture
what are some kinds of water that seeps into the ground and becomes groundwater.
The temperature of water at higher elevations are
what is Colder
an area of land that drains into a particular body of water
what is a watershed
what Does the US use more of
Surface water
Groundwater is bordered on the top surface by
what is Water table
Wells can be dug into what so water can be pumped out
aquifers
what happens when rivers flatten out and widen
water slows and warms.
Sediment and biodiversity increase
what are formed when higher elevations where water collects to form trickling streams and waterfalls
Headwaters
Which has more pollution
Surface water
what is formed when groundwater bubbles up to the Earth’s surface
What is a Spring
what % of the earths freshawater is stored as groundwater
30%
Watersheds begin along a
What is a Divide
what are agricultural fertilizers, suburban runoff and wastewater treatment plants
Common Sources of nutrient pollution:
Which is used more by Americans
Ground Water
An unconfined aquifer is found above a/an
what is an aquitard
how many gallons of groundwater are used every day in the U.S. for irrigating crops.
More than 50 billion gallons