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Water cycle
Stream Characteristics
Watersheds and Drainage
Stream Biology
Stream Biology 2
100
How much of Earth's water is freshwater?
3%
100
Also called the headwaters of a river.
What is the source.
100
What makes up the boundaries of a watershed?
What is a divide
100
Type of protist that eats decaying organic material.
What is a saprotroph
100
An organism that burrows down in the mud is said to live in what type of substrate?
inorganic
200
Part of the water cycle in which water vapors cool enough to begin to turn back into liquid form.
What is condensation
200
Term for when water moves in tiny circular paths as it flows downstream.
What is turbulent flow.
200
A type of drainage that resembles the branches of a tree.
What is Dendritic.
200
What do you call fish that filter food directly from sediments in the water?
detritovores
200
Term for an abiotic factor that reflects the amount of suspended sediments in the water.
Turbidity
300
Hard water is caused by high concentration of what?
Calcium
300
What are the units that velocity is measured in?
What is meters per second.
300
What is the largest watershed in PA?
the susquehanna/chesapeake basin
300
Where can you find a 3rd order stream?
in a place where two 2nd order streams merge
300
Why is a Q value used to determine Water Quality Index?
because you cannot combine test results that contain different units.
400
What is the name for tiny channels of runoff that begin a river?
rills
400
Type of sediment load that carries large things like sand, pebbles, and rocks.
What is bed load.
400
What is the largest river in the Potomic Basin?
the Shenandoah
400
What types of organisms live in 1st order streams?
insects
400
Explain how you can use macroinvertebrates to tell the health of a river.
classify them by types. the group with the most types determines health.
500
Name 5 places you can find fresh water.
Lakes, rivers, glaciers, groundwater, atmosphere
500
What are 2 situations that would cause a river to deposit its load?
velocity slows down river overflows its banks.
500
Pennsylvania is divided up into how many different watersheds?
104
500
What type of velocity will a river have that shows vertical variations in temperature?
slow
500
What is the main reason for Pennsylvania having more acidic water than other areas?
mining