Shared Flashcard Set

Details

nick lizana
chessapeake watershed
45
Science
7th Grade
09/04/2013

Additional Science Flashcards

 


 

Cards

Term
Watershed
Definition
an area where all water drains into 1 body of water
Term
Stormwater/run off
Definition
rain that hits the ground but doesn't sink in right away
Term
Surface water
Definition
water above ground like lakes, streams, rivers, oceans, ect.
Term
groundwater
Definition
water underground
Term
erosion
Definition
sediment/dirt that is moved by wind or water
Term
sediment
Definition
dirt
Term
estuary
Definition
where fresh water and salt water mix
Term
tributary
Definition
a body of water that empties into a larger body of water
Term
impervious surface
Definition
water can't penatrate surface
Term
retention pond
Definition
man made pond that holds stormwater
Term
sediment barrier
Definition
blocks sediment
Term
three sediment trap purposes
Definition
1. traps sediment
2. traps stormwater and allows water to sink in the ground
3. prevents erosin
Term
observe
Definition
using your five senses
Term
infer
Definition
using observations to make an educated guess
Term
true or false: one theory of how the bay was formed was that a meteorite hit the ocean thirty five million years ago
Definition
true
Term
true or false: the bay has a water shed 64,000 miles long
Definition
true
Term
true or false the Chesapeake had a lot of shellfish
Definition
true
Term
true or false the Chesapeake is the worlds largest estuary
Definition
false its the nations largest estuary
Term
true or false the 2 theories of how the Chesapeake formed are that a meteorite hit the ocean or melting ice caused sea level to rise
Definition
both are true
Term
true or false Chesapeake comes from the Algonquin word "chesepioc" and it mean the "great shellfish bay"
Definition
true
Term
true or false in the Early 1700s Captain John smith explored the Chesapeake Bay
Definition
false in the early 1600s
Term
true or false the Chesapeake stretches from Virginia to New York and Delaware to West Virginia and its 64,000 square miles
Definition
true
Term
true or false The Chesapeake gets its fresh water from brooks and streams The boundaries include New York, Pennsylvania, Delaware, Maryland, West Virginia, and Virginia
Definition
true
Term
true or false the Chesapeake mixes with salt water from the Atlantic ocean to create brackish water
Definition
true
Term
point source pollution
Definition
a type of pollution that is easy to see
Term
examples of point source pollution are
Definition
smokestacks and pipes from industry
Term
true or false point source pollution is easier to regulate
Definition
true it is easier
Term
point source pollution
Definition
pollution sources that are not easily seen
Term
examples of non point source pollution
Definition
fertilizers, pesticides, oil, and trash
Term
true or false it is harder to find non point source pollution
Definition
true it is harder to find
Term
acid rain
Definition
chemicals mixed with water droplets
Term
fertilizers
Definition
cause abundance of algae
Term
garbage
Definition
destroys habitats
Term
sediment*
Definition
covers fish eggs,underwater grasses, and oyster bars
Term
turbidity
Definition
cloudiness of water
Term
what are the main functions of a marsh?
Definition
marshes provide food and habitat for other organisms, help prevent flooding, and are a natural filtration system
Term
How does a wetland filter water?
Definition
Wetlands filter water by trapping pollution
Term
How does a marsh minimize effects of erosion?
Definition
Marshes minimize effects of erosion by trapping sediment and filtering pollution
Term
what does a wetland provide for migratory birds?
Definition
Wetlands provide resting areas for migratory birds
Term
What is salinity?
Definition
Salinity is the amount of salt in a body of water.
Term
How is salinity measuserd?
Definition
Its measuerd by ppt, part per thousand.
Term
What is the rang of salinity in the chesapeake bay?
Definition
The range of salinity in the Chesapeake is 0-29 ppt.
Term
What are the three factors that effect salinity?
Definition
The factors are the seaons, depth of the water, and where you are in the bay.
Term
Where are salinity levels lowest in the bay?
Definition
The levels are lowest near the surface and in the northern area of the bay.
Term
What can salinity levels determine?
Definition
It can determine what organisms live in the deep waters and what area of the bay there in.
Supporting users have an ad free experience!