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Sobczak
cheasapeeke bay watershed
34
Science
7th Grade
09/03/2013

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Cards

Term
Observe
Definition
Using your five senses
Term
Infer
Definition
A guess
Term
Watershed
Definition
An area where all water drains into one body of water
Term
Stormwater/runoff
Definition
Rain that hits the ground, but doesn't sink in right away
Term
Surface water
Definition
Water above ground such as [streams, rivers, lakes, and oceans]
Term
Ground water
Definition
Water underground
Term
Erosion
Definition
Sediment/dirt is moved by water or wind
Term
Sediment
Definition
Dirt
Term
Estuary
Definition
A bay of water were fresh water and salt water mix
Term
Tributary
Definition
A body of water that empties into a bigger body of water
Term
Imperbious surface
Definition
Water resistant
Term
Retention pond
Definition
Man-pond that holds storm water
Term
Sediment barrier
Definition
Traps the sediment
Term
The 3 purposes for a retention pound
Definition
1. Traps sediment
2. Traps storm water and lets it sink into the ground
3. Prevents storm water from eroding into nearby streams
Term
point source pollution
Definition
type of pollution that you can see the source
Term
kinds of point source pollution
Definition
Smokestacks & pipes from factories
Term
true or false, point source pollution are easier to see than non-point source pollution?
Definition
true
Term
non-point source pollution
Definition
pollution not easy to see
Term
what are non-point source pollution examples
Definition
oil, fertilizer, pesticide, and trash
Term
true or false, non-point sources are harder to find then point source pollution?
Definition
true
Term
acid rain
Definition
chemicals in water droplets
Term
fertilizer
Definition
causes an abundance of algae
Term
Garbage
Definition
destroys habitats
Term
sediment
Definition
covers fish eggs and under water grasses
Term
turbidity
Definition
cloudiness of water
Term
what are the four types of pollution
Definition
acid rain, fertilizer, garbage, and sediment
Term
what are the main functions of a marsh
Definition
to prevent flooding, fillters water, and is a place for wild life
Term
what is salinity
Definition
the amount of salt water in a area
Term
how is it measured
Definition
it's measured by parts per thousand
Term
what is the range of salinity in the ch. bay
Definition
1-29 feet
Term
what are the three functions that effect salinity
Definition
Location,time of year, and depth of water
Term
where are the salinity levels lowest in the bay
Definition
uper bay
Term
the salinity levels determine what about organisms
Definition
if they can live there or not
Term
what year is the salinity ther highist
Definition
1972
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