Systems and cycles
Water Cycle
Nitrogen cycle
Chemistry
Energy
100
Positive
What is the feedback loop that drives the system towards one extreme
100
Transpiration
What is the term for plants water vapor returning to atmosphere through leaves.
100
Bacteria
What is it that converts nitrogen to ammonia?
100
periods
What is horizontal rows called across teh periodic table?
100
joules
What is the units of potential and kinetic energy?
200
Closed System
What is the system that the earth is?
200
Condensation
What is teh process which water vapor is converted to liquid water?
200
atmosphere
What is the largest reservoir of nitrogen?
200
valence electrons
What is the electrons in the last shell called, or energy level?
200
potential
What is the energy described by mxgxh?
300
Open system
What is the system where both matter and energy can leave
300
Runoff
What is water flowing over the earths surface called?
300
eutrophication
What is called when there is excess fertilizer in water and more nitrogen.
300
isotope
What is it called when an atom gains or loses neutrons that change its mass?
300
elastic potential
What is the energy called that is stored in a rubber band or spring?
400
Geosphere
What is the sphere that the sand on a beach is in?
400
precipitation
What is the process where water falls to the ground?
400
Dead zone
What is it called when there is no O2 in water/
400
covalent
What is teh chemical bonds called that share electrons?
400
kinetic
What is the energy called that is due to motion?
500
Closed System
What is the feedback loop where matter cannot leave but energy can?
500
Infiltration
What is the process in which water seeps into the ground?
500
bacteria
What is that consumes plants and uses up O2 in water?
500
electrons
What is negatively charged particles called?
500
The 2nd Law of thermodynaics
What is the law that says that energy transferred becomes less useful?
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