River Study
Phosphorus Cycle
Systems, spheres
Nitrogen Cycle
Chemistry
100
This the measure of how much water flows through an area at a certain time, ft cubed per second
What is stream flow?
100
This is the only sphere phosphorus is not found in
What is the atmosphere
100
This type of feedback loop drives the system towards an extreme high or low
What is positive feedback loop?
100
This is the most abundant reservoir of nitrogen
What is atmosphere
100
2 nitrogen form this type of bond
What is covalent (triple bond)
200
These are opposite and measure the clarity and lack of clarity of water
What is transparency and turbidity?
200
this is how phosphorus is transferred (weathering, erosion, etc.)
What is the rock cycle
200
This feedback loop drives the system to an equillibrium
What is negative feedback loop?
200
Plants take in these forms of Nitrogen
What are nitrates and ammonia?
200
This type of element conducts heat and electricity very well, and is bendable
What is metal
300
This is the best ph for lakes
What is 6.5-8.2?
300
Phosphorus enters lakes and causes unnatural aging or this
What is cultural eutrophication
300
In football, the team that was scored on gets the ball
What is negative feedback loops
300
Excess nitrites in water cause this
What is blue baby syndrome?
300
This is a charged (positive or negatively) atom
What is an ion
400
This makes the environment for fish worse, less DO and makes toxics more toxic
What is warmer water?
400
This is how humans get their phosphorus
What is food chains
400
This sphere contains gases and water vapor
What is atmosphere
400
These are created by excess nutrients entering water, creating algae blooms and lack of oxygen
What are dead zones?
400
Valence electrons are shared in this type of bond.
What is a covalent bond?
500
This river was studied by classes at Rosemount High School
What is Vermillion River
500
Humans need phosphorus for this
What is DNA, amino acids, fats, etc...
500
Ice melts, raising the albedo, making it absorb more sun, making ice melt...
What is positive feedback loop
500
Human use this which contain nitrogen, which runs off into water.
What is fertilizer?
500
To break the bond in this reaction energy is needed, so it absorbes it from the environment, making the temp go down and the energy go up
What is an endothermic reaction?
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