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Milani
Chesapeake Bay Watershed
44
Science
7th Grade
09/03/2013

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Term
observe
Definition
examining using your senses
Term
watershed
Definition
an area or ridge of land that separates waters flowing to different rivers, basins, or seas
Term
infer
Definition
taking a guess using prior knowledge
Term
stormwater/runoff
Definition
the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure,
Term
surface water
Definition
water found on the earth's water
Term
ground water
Definition
water found under the ground
Term
erosion
Definition
the process of eroding or being eroded by wind, water, or other natural agents.
Term
sediment
Definition
dirt that makes the water mucky
Term
estuary
Definition
a body of water where fresh and salt water mix
Term
tributary
Definition
a body of water that flows into a larger body of water
Term
sediment barrier
Definition
A temporary barrier installed across or at the toe of a slope.
Term
retention pond purposes
Definition
protects the rivers and the animals in the rivers. brings all of the storm water into that area to prevent flooding.
Term
retention pond
Definition
a retention basin, is a type of best management practice (BMP) that is used to manage stormwater runoff to prevent flooding and downstream erosion, and improve water quality in an adjacent river, stream, lake or bay.
Term
impervious surface
Definition
a surface that can not be penetrated by water
Term
What is the nations largest estuary?
Definition
Chesapeake Bay
Term
What are the 2 theories of how the Chesapeake was made?
Definition
During the ice age the ice melted causing the water level to rise. And also i huge meteor crashed into the bay.
Term
captain John Smith
Definition
He explored the Chesapeake bay in the early 1600s
Term
what does the word chesapeake mean?
Definition
Chesapeake comes from the word Chespioc which means great shellfish bay
Term
How big is the chesapeake bay?
Definition
64,000 sq miles
Term
Point source pollution
Definition
A point source of pollution is a single identifiable localized source of air, water, thermal, noise or light pollution. A point source has negligible extent, distinguishing it from other pollution source geometries. ...
Term
non point source pollution
Definition
Nonpoint source (NPS) pollution is water pollution affecting a water body from diffuse sources, such as polluted runoff from agricultural areas draining into a river, or wind-borne debris blowing out to sea. ...
Term
acid rain
Definition
rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which contain sulfur and nitrogen oxides, which combine with atmospheric water to form acids.
Term
fertilizer
Definition
a chemical or natural substance added to soil or land to increase its fertility. It can ruin the water color and cause some of the animals to die.
Term
garbage
Definition
wasted or spoiled food and other refuse, as from a kitchen or household. Animals could try to eat it and die.
Term
point sollution is harder to regulate T/f
Definition
F
Term
non point sollution is easier to regulate T/F
Definition
F
Term
sediment
Definition
dirt
Term
turbitity
Definition
cloudiness of water
Term
types of pollution in Ch bay
Definition
acid rain, fertilizer, garbage, and sediment.
Term
example of point source pollution
Definition
smokestacks,pipes from industries
Term
example of non point source pollution
Definition
fertilizers, pestisides, oil, trash, and nutrients
Term
three factors that effect salinity
Definition
1.location 2. time of the year 3. depth of water
Term
how is salinity measured
Definition
it is measured per thousand
Term
what is salinity
Definition
the amount of salt contained in a given sample of water
Term
where are the salinity levels the lowest
Definition
in the upper bay just below the inflow th inflow of fresh water
Term
salinitly levels determine what about organisms
Definition
species and plants sometimes prefer to go in places where salinity is higher and sometimes lower.
Term
what years are salinity the highest
Definition
1996, 1972, 1979
Term
what years are the salinity levels the lowest
Definition
1963, 1966
Term
t/f the salinity levels are the lowest near the inflow of salt water
Definition
false
Term
t/f the salinity levels are the highest at the inflow of salt water
Definition
true
Term
t/f the salinity levels are the lowest near the inflow of fresh water
Definition
true
Term
t/f the salinity levels are the highest near the inflow of fresh water
Definition
false
Term
what is the range of salinity in the chesapeake bay
Definition
1-29 ppt
Term
why would there be more saltwater than freshwater at sometimes.
Definition
it could have not rained in a while so there would not ne much fresh water
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