Shared Flashcard Set

Details

stavrakis
chesapeake bay watershed
34
Science
7th Grade
09/03/2013

Additional Science Flashcards

 


 

Cards

Term
observe
Definition
examining using your senses
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/runoff
Definition
water that does not sink in the ground after a rain
Term
surface water
Definition
water found on earth surface
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 salt water mix
Term
tributary
Definition
a body of water that flows into a larger body of water
Term
imperbious surface
Definition
water that cant penitrate
Term
retention pond
Definition
a man made pond that holds storm water
Term
sediment barrier
Definition
prevents sediment from going down the drains.
Term
3 purposes of retention pond
Definition

1) traps storm water and allows to sink in ground.

    2)traps sediment.

3) prevents storm water from rushing into streams causing erosion.

 

Term
Point source pollution
Definition
easy to see source
Term
Examples of point source pollution
Definition
Smoke Stacks + Pipes
Term
T/F point source pollution is easier to regulate
Definition
True
Term
T/F point source pollution is easier to regulate
Definition
True
Term
Non Point Source Pollution
Definition
hard to see the source
Term
Non-Point source pollution examples
Definition
fertilizer, pesticides, oil, trash, nutrients
Term
T/F Non-Point source pollution hard to see
Definition
True
Term
Acid Rain
Definition
Chemicals + water droplets
Term
Fertilizer
Definition
create to much algae
Term
Garbage
Definition
Destroys habitats
Term
Sediment
Definition
Smothers fish eggs + oyster bars
Term
Turbidity
Definition
cloudiness of water
Term
Turbidity
Definition
cloudiness of water
Term
Types of pollution in ch. bay
Definition
Acid rain, fertilizer, garbage, sediment
Term
What is Salinity?
Definition
The amout of salt contained in a given samlpe of water
Term
How is Salininity measured?
Definition
parts per thousand ppt.
Term
What is the range of salinity in the chesapeake bay?
Definition
1-21 ppt
Term
What are the three factors that effect salinity?
Definition
1) water found in the bay
2)Time of year
3)the depth of water
Term
Where are the salinity levels the lowest in the bay?
Definition
Up North near the Susquehanna river
Term
The salinity levels can determine what about organisms
Definition
where sertain species live
Supporting users have an ad free experience!