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Thompson
chesapeake bay watershed
46
Science
7th Grade
09/03/2013

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Term
observe
Definition
to use your sences
Term
infer
Definition
to assume based on knowledge
Term
watershed
Definition
area where all the water drain in 1 body of water
Term
stormwater/run-off
Definition
water/ rain that doesnt sink into the ground
Term
surface water
Definition
found in lakes, rivers, and streams
Term
groundwater
Definition
water underground
Term
erosion
Definition
sediment/dirt is moved by water or wind
Term
sediment
Definition
dirt
Term
estuary
Definition
a body of water where fresh and salt water mix
Term
tributary
Definition
a body of water that empties into a large body of water
Term
impervious surface
Definition
water resistant
Term
retention pond
Definition
man-made pond that holds storm water
Term
sediment barrier
Definition
box of sediment
Term
3 purposes of a retenyion pond
Definition
1. traps sediment
2. traps storm water and lets it sink into the ground
3. prevents storm water from eroding nearby streams
Term
water cant go through a impervious surface.
Definition
False
Term
There are 4 purposes of a retention pond
Definition
False
Term
a retention pond is man made
Definition
True
Term
The Chesapeack Bay
Definition
The Chesapeacke is the nations largest estuary
Term
The 2 theorys
Definition
1. a meteor hit the ocean thirty-five million years ago punched a whole twice as big as Rhode Island
2. the Bay formed after the last ice age a huge volcano flooded then the river valley of the acient Sus. River creating the Chesapeake.
Term
The name of The Chesapeacke
Definition
Chesapeacke mas "great shelfish bay"
Term
How many miles is the Chesapeacke
Definition
Its 64,000 square mile drange basic, which stretches from New York and from Deleware to West Virginia.
Term
The C's watershed boundries
Definition
This includes NY,Pynnsylvania,Deleware,Maryland, West Virginia and , Virginia
Term
Point Source Pollution
Definition
pollution thats easy to see
Term
Point Source P.examples
Definition
smoke stacks & pipes from industries plants.
Term
Non-Point source
Definition
harder to find
Term
Non-Point source P.examples
Definition
fertilizer,pesticides,oil,trash,nutrients. Hard to regulate
Term
Types of pollutants
Definition
Acid rain- water droplets and chemicals
Term
Types of pollutants
Definition
fertilizer- to much algae
Term
Types of pollutants
Definition
garbage-destroys habbitat
Term
Types of pollutants
Definition
sediment-smothers fish eggs
Term
Types of pollutants
Definition
turbility- the cloudiness of water
Term
What are the main funtions of a marsh?
Definition
The marsh provides food and a habbitat for the animals
Term
How does the wetland filter the water?
Definition
letting plants plants trap pollutants and sediment
Term
How does a marsh minimize the effects of erosion?
Definition
proecting shorelinen enviorments
Term
What does the wetland provide for migratory birds?
Definition
food and a resting place
Term
What is salinity?
Definition
The amount of salt contained in a given sample of water.
Term
How is salinity measured?
Definition
By ppt.- parts per thousand.
Term
What is the range of salinity in the Chesapeake Bay?
Definition
1 to 29 ppt.
Term
What are the three factors that effect salinity?
Definition
1. time of year
2. locatin
3. depth of the water
Term
The salinity level can determine what about organisms?
Definition
If they like or like the amout of salt water.
Term
Rockfish/Striped Bass
Definition
are one of the success stories in the Chesapeake Bay conservation.
Term
What are the fiercest predators in the Ch. Bay?
Definition
Rockfish
Term
Where do Rockfish live most of their lives?
Definition
in the saltwater of the ocean
Term
Where do most juvenile fish begin their lives?
Definition
in shallow marshes and grass beds hiding from large predators.
Term
counter shading
Definition
The rockfishe's way of camouflage.
Term
What led to a remarkable recovery for the rockfish?
Definition
Moratorium, combined with restoration.
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