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green
chesapeake bay watershed
51
Science
7th Grade
09/03/2013

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Cards

Term
observe
Definition
examining using your eyes
Term
infer
Definition
taking a guess using prior knowledge
Term
watershed
Definition
an area where all water collects into 1 body of water
Term
stormwater/run-off
Definition
water that doesn't sink into the ground after a rain
Term
surface water
Definition
water found on Earth's surface (such as lakes, streams, rivers, etc.)
Term
groundwater
Definition
water found underground
Term
erosion
Definition
movement of sediment(soil) by wind and water
Term
sediment
Definition
dirt
Term
estuary
Definition
a body of water where fresh and saltwater mix (to make brackish water)
Term
tributary
Definition
a body of water that flows into a larger body of water
Term
impervious surface
Definition
where water cannot penetrate
Term
sediment barrier
Definition
prevents sediment from moving
Term
purposes of retention pond
Definition
it traps stormwater and allows to sink into ground

traps sediment

prevents stormwater from rushing into streams causing erosion
Term
retention pond
Definition
manmade pond that holds stormwater
Term
True or false? One theory of how the Chesapeake bay was formed was that a meteorite hit the ocean 35 million years ago and formed the chesapeake bay?
Definition
True
Term
True or false? The word Chesapeake comes from the latin word Chesepioc which means great shellfish bay?
Definition
False
Term
True or false? Captain Washington explored the Chesapeake Bay in the early 1600s.
Definition
False
Term
What is the world's biggest estuary?
Definition
Chesapeake Bay
Term
What are the two theories of how the Chesapeake bay was formed?
Definition
A meteorite hit the ocean 35 million years ago and made a hole twice the size of Rhode Island. Melting ice caused the sea levels to rise.
Term
Where does the word Chesapeake come from and what does it mean?
Definition
The word Chesapeake comes from the Algonquin word Chesepioc which means great shellfish bay.
Term
Who explored what and when?
Definition
Captain John Smith explored the Chesapeake Bay in the early 1600s.
Term
How big is the Chesapeake Bay?
Definition
The Chesapeake Bay is 64,000 square miles.
Term
What states are within the watershed's boundaries?
Definition
NY, PA, Delaware, MD, WV, and VA.
Term
What kind of water is in the Chesapeake Bay?
Definition
Brackish water
Term
Point Source Pollution
Definition
Easy to see
Term
Point source pollution ex.
Definition
smokestacks and pipes from large industrial plants/industries
Term
Point source pollution is easier to regulate t/f
Definition
true
Term
Non point source pollution
Definition
hard to see source
Term
Non point source pollution ex
Definition
fertilizers, pesticides, oil, trash and nutrients
Term
Non point source pollution is harder to regulate t/f
Definition
true
Term
acid rain
Definition
chemicals + water droplets
Term
turbidity
Definition
the cloudiness of water
Term
fertilizer
Definition
create too much algae
Term
garbage
Definition
destroys habitat
Term
sediment
Definition
smothers fish eggs + oyster bars
Term
types of pollution
Definition
acid rain
fertilizer
garbage
sediment
Term
What are the 4 main functions of a marsh?
Definition
Provide food, provide habitat, provide shelter
Term
How do wetlands filter water?
Definition
A wetland filters water by trapping it in the plants found in wetlands.
Term
How does a marsh minimize the effects of erosion?
Definition
A marsh minimizes the effects of erosion by protecting shoreline environments.
Term
What two things does a wetland provide for migratory birds?
Definition
Food and shelter
Term
What is salinity?
Definition
The salt content of the water?
Term
How is salinity measured?
Definition
In parts per thousand, or ppt.
Term
What are three factors that affect salinity?
Definition
Location, time of year, and depth of the water.
Term
Where are the salinity levels lowest in the Bay?
Definition
In the upper bay, just below the powerful freshwater inflow of the Susquehanna river?
Term
True or false?
Definition
Freshwater is heavier than saltwater?
Term
The salinity levels can determine what about organisms?
Definition
What can widthstand what.
Term
What years are the salinity levels highest?
Definition
1996
Term
What years are the salinity levels the lowest?
Definition
1965
Term
What is the range of salinity in the Chesapeake Bay?
Definition
1 to 29 ppt
Term
How is the salinity less in the spring?
Definition
It is less in the spring because it rains more and the freshwater overpowers the saltwater?
Term
True or false? The salinity ranges are lower in the spring
Definition
True
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