Biogeochemical Cycles
TWO PARTS:
1. RESERVOIR- LOCATION OF NUTRIENT
2. PROCESSES – MOVES NUTRIENT
The cycling of nutrients in the biosphere involves
both matter in living organisms and physical
processes found in the environment such as
weathering.
Four Biogeochemical Cycles: Forms Nutrient Can Take On In Cycle
Nitrogen Cycle
nitrates, nitrites, ammonia, nitrogen,
proteins
Carbon Cycle
carbon dioxide, glucose & other sugars,
limestone (calcium carbonate), all organic
compounds like fossil fuels (coal, methane)
Water Cycle
rain, snow, sleet, ice caps, salt water, fresh
water, water vapor
Phosphorus Cycle
phosphates, rocks,
Nitrogen Cycle
Animation of the Nitrogen Cycle
Nitrogen Cycle Song
Water Cycle
Water Cycle Video
Water Cycle Explanation
Water Cycle Rap
Principles of Ecology
Water Cycle Animation
Carbon Cycle: A Scientifically Deep Animation
Carbon Cycle Song
Carbon Cycle Is a Girl's Best Friend
Carbon Cycle Animation
Phosphorus is the
only cycle that does
not have an atmospheric
reservoir.
PO4 is known as phosphate. It
Is a polyatomic ion. How do
you know?
Phosphorus Cycle Video
Principles of Ecology
Flow of Energy in an Ecosystem:
Ecological Pyramids
A diagram that can show the relative amounts of
energy, biomass, or numbers of organisms at each
trophic level in an organism
Numbers decrease
because level energy
available as go up
trophic levels
Rule of 10’s means that only 10% of the energy from a trophic level is passed on to
the next trophic level. This applies to the Pyramid of Energy.
Biogeochemical Cycles Diagram Reading
Complete the Cycle Diagram Worksheets.
As you complete them, pay close attention to the
process and the reservoir.
Be sure you know why each cycle is important for life.
Remember, nutrients cycle and energy flows.
Section 2.3 and Ecological Pyramids Quiz:
Wed, 11/11