PA Water Basins
Our river basin
What is the Ohio River Basin?
Connects points of equal elevation
What is a contour line?
Source of iron in the stream
What is rocks?
The numbering system used for streams
What is stream order?
This chemical test determines if exoskeletons will be built
What is hardness?
This water basin is in the lower middle part of PA and extends into Maryland
What is the Potomac River Basin?
What is go up/down hill or intersect/cross each other?
Relationship between temperature and DO
What is when the temp goes up, DO goes down and when the temp goes down, DO goes up?
If 2 3rd order streams meet
What is a 4th order stream?
Shredders eat this.
What is leaves?
This basin provides drinking water to New York City
What is the Delaware River Basin?
3 ways dissolved oxygen enter a stream
What are diffusion, photosynthesis, and riffles?
If a 2nd order and a 3rd order stream meet
What is a 3rd order stream?
What the organisms we collect in the stream are called
What is macroinvertebrates?
This water basin is found in the far northwest corner of the state
What is the Great Lakes Basin?
The boundaries of a watershed determined by this
What is the highest elevation?
What is turbidity and it clogs gills?
Water flow chart for the Oil Creek Watershed
What is Oil Creek--->Allegheny River--->Ohio River--->Mississippi River--->Atlantic Ocean
This interferes with a stream organism's ability to build a shell and may kill organisms outright.
What is an acid or a low pH?
The largest water basin in PA
What is the Susquehanna River Basin?
Rule of the Vs
What is when contour lines cross a stream they form a V whose tip points upstream?
Describe the relationship between nitrates and dissolved oxygen
What is an increase in nitrates causes an overgrowth of plants/algae which will result in a net loss of DO when they decompose?
You are considering building a dam across a river to generate electricity. You would need to know this to determine if the dam would be successful.
What is the volume of flow?
Finding many of these types of organisms indicates that you have a healthy stream
What is pollution-sensitive or pollution-intolerant species?