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lkelly
Chesapeake Bay Watershed
37
Science
7th Grade
09/04/2013

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Cards

Term
Observe
Definition
examining using your senses
Term
Infer
Definition
taking a guess using prior knoledge
Term
Watershed
Definition
an area where all water collets into 1 body of water
Term
Stormwater/Run-Off
Definition
water that doesn't sink in the ground after rain
Term
Suface Water
Definition
water found on the Earh's surface

(found in lakes, streams, rvers, ect.)
Term
Ground Water
Definition
water found under gound
Term
Erosion
Definition
movent of sedments (soil) by wind or water
Term
Sediment
Definition
dirt
Term
Estuary
Definition
a body of water where fresh water and salt water mix
Term
Tributary
Definition
a body of water that flows into a larger body of water
Term
Impervious Surface
Definition
water can not penatrate
Term
Retention Pond
Definition
man made pond
Term
Sediment Barrier
Definition
prevents sediment from washing down the stream
Term
Purpose Of Retention Pond
Definition
1. traps storm water and allows it to sink into the ground
2. sediment
3. prevents storm water from rushing into streams causing erosion
Term
a watershed is an area where all water collects into 1 body of water
Definition
True
Term
a retention pond is natural pond
Definition
False
Term
examining your senses is to infer
Definition
False
Term
What is the nation's largest estuary?
Definition
Chesapeake Bay
Term
What are the two theory's of how the Chesapeake Bay was formed?
Definition
1. meteorite hit the ocean
2. glaciers melted from the last ice
Term
What does Chesapeake mean?
Definition
Algonquin word "Chesepioc" which means "great shellfish bay"
Term
Who explored the Chesapeake bay in the 1600s?
Definition
Captain John Smith
Term
How large is the Chesapeake Bay?
Definition
64,000 square-miles
Term
What states are boundaries of the Chesapeake Bay?
Definition
New York, Pennsylvania, Delaware, Maryland, Virginia, West Virginia
Term
What is brackish water and how is it formed in the Chesapeake Bay?
Definition
salt water and fresh water mixed

salt water from the Atlantic and fresh
Term
What are the main functions of a marsh?
Definition
1.filter water
2.prevent flooding
3.provides food
4.provides habitats
Term
How does a wetland filter water?
Definition
1.sediments and pollutants
2.gets trapped by plants
Term
How does a marsh minimize the effects of erosion?
Definition
1.protects shore lines
2.traps sediment
Term
What does a wetland provide for migrating birds
Definition
1.resting spot
2.food
Term
What is salinity?
Definition
the amount of salt contained in a given sample
Term
How is salinity measured?
Definition
parts per thousand, ppt.
Term
What is the range of salinity in the Chesapeake Bay?
Definition
1-21 ppt.
Term
Where are the salinity levels the lowest in the Bay?
Definition
up north near the Susquehanna River
Term
What are the 3 factors that effect salinity?
Definition
1.location
2.time of year
3.depth of water
Term
The salinity levels can be determine what about organisms?
Definition
where sertain species live because of their behavior
Term
True or False: fall time is when the water is the saltiest
Definition
True
Term
acid rain
Definition
chemicals and water droplets mixed
Term
acid rain
Definition
chemicals and water droplets mixed
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