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Harry
chesapeake bay watershed
41
Science
7th Grade
09/05/2013

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Term
observe
Definition
to use senses
Term
infer
Definition
using observations to make a guess
Term
watershed
Definition
an area of water where run-off and storm water collects
Term
stormwater
Definition
rain that dosent sink into the ground
Term
impervious
Definition
water cannot penetrate this surface
Term
surface water
Definition
water above the ground such as lakes rivers streams
Term
tributary
Definition
a body of water the empties into a larger body of water
Term
retention pond
Definition
a pond that catches storm water and sediment
Term
erosion
Definition
when the surface is whipped away by water and caves in
Term
retention pond purposes
Definition
1. catches sediment 2. lets stormwater sink into the ground 3. and help the water slow down when entering streams
Term
sediment
Definition
loose dirt picked up by water
Term
ground water
Definition
water that sinks and travels under ground
Term
estuary
Definition
an inlet at the lower end of an ocean
Term
sediment barrier
Definition
a barrier that protects sediment from getting into a specific area
Term
tributary have to have salt water mixing in it.
Definition
true
Term
can water penetrate an impervious surface
Definition
false
Term
another word for storm water is run-off
Definition
true
Term
whats the worlds largest estuary
Definition
Chesapeake
Term
two theories of the Chesapeake bay formation
Definition
a meteorite hit it and made a crack and an iceberg melted and flooded the Susquehanna
Term
what does chesopioc means
Definition
shellfish bay
Term
Who is john smith
Definition
discovered and explored te chesapeake bay in1600
Term
how big is the bay
Definition
64,000 miles
Term
what states are in the water shed
Definition
maryland, new jersey, new york, Pennsylvania, west virginia, Virginia, delaware
Term
what is brackish water
Definition
salt and fresh water mix
Term
point source pollution
Definition
pollution that is easier to see and clean up. such as smoke stack and factories.
Term
non point source pollution
Definition
pollution that you can see and hard trace and regulate. such as fertilizers and pesticides
Term
acid rain
Definition
chemicals and water droplets
Term
fertilizers
Definition
to much algae
Term
garbage
Definition
destroys habitat
Term
sediment
Definition
smothers fish eggs
Term
turbidity
Definition
cloudiness of water
Term
what are the functions of a wetland
Definition
they connect deep water and land, provde habitat and food for animals protect land from floods.
Term
how do wetlands filter water
Definition
they catch sediment and let it settle.
Term
do wetlands provide anything for organisms
Definition
wetlands provide shelter and a resting area for birds, fish, oysters, crabs, and plants.
Term
how are wetlands improving water quality
Definition
it traps sediment from the water
Term
what is salinity
Definition
salintity is the amount of salt in a certian area of water
Term
how isw it measured
Definition
ppt; parts per thousand
Term
what the three factors of salinity
Definition
location, time of the year, depth of the water
Term
where is the salinity lowest
Definition
in the upper bay, farthest from the ocean
Term
the salinity levels can determine what about organisms
Definition
what type of plant life lives there
Term
what is the range of the bay
Definition
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