4.1.U9:  Autotrophs and heterotrophs obtain inorganic nutrients from the abiotic environment.

• Define nutrients.

• List the common nutrients needed by organisms.

• Outline how nutrients enter living systems.

4.1.U10:  The supply of inorganic nutrients is maintained by nutrient recycling (distinction between energy flow and nutrient cycling should be stressed)

• State that chemical elements can be recycled but energy can not.

• Outline the generalized flow of nutrients between the abiotic and biotic components of an ecosystem.

4.3.S1:  Construct a diagram of the carbon cycle

• Define pool and flux.

• Draw a diagram of the terrestrial carbon cycle.

• Draw a diagram of the aquatic carbon cycle.

4.3.A1:  Estimation of carbon fluxes due to processes in the carbon cycle (in gigatonnes)

• List seven flux processes in the carbon cycle.

• State the unit of measure for carbon flux values.  

4.3.U4:  Carbon dioxide is produced by respiration and diffuse out of organisms into water or the atmosphere

• State that carbon dioxide is a waste product of aerobic cellular respiration.

• State that carbon dioxide diffuses out of cells into the atmosphere or water.

4.3.U3:  Carbon dioxide diffuses from the atmosphere or water into autotrophs

• State that in diffusion, molecules move from an area of higher concentration to an area of lower concentration. 

• State the CO2 diffuses from atmosphere or water into an autotroph, where it is used for photosynthesis. 

4.3.U1:  Autotrophs convert carbon dioxide into carbohydrates and other carbon compounds

• State the role of photosynthesis in the carbon cycle.

Pools and Flux notes

Pools and Flux CFU

Pools and Flux review

Carbon cycle reading

A&B:  Using supercomputers to measure carbon

A&B:  Can dirt save the Earth

Draw a carbon cycle task

Example Carbon cycle drawing

Example Carbon cycle 

GvB Drawing of C-Cycle through Biosphere

4.3.A2:  Analysis of data from air monitoring stations to explain annual fluctuations

• Sketch a graph of the annual fluctuation in atmospheric carbon dioxide concentration.

• Explain the annual fluctuation in atmospheric carbon dioxide concentration in the northern hemisphere.

Seasonal atmospheric [CO2] handwritten

Seasonal atmospheric [CO2] slides

Seasonal CO2 CFU

A&B:  Earth Breathing more deeply

NASA Satellites Watch Earth 'Breathe' in Awesome Time-Lapse Video

Seasonal Changes in Carbon Dioxide 

NASA video of seasonal CO2

4.3.U5:  Methane is produced from organic matter in anaerobic conditions by methanogenic archaea and some diffuses into the atmosphere or accumulates in the ground.

• Outline the role of methanogenic archaea in the transformation of organic material into methane.

4.3.U6:  Methane is oxidized to carbon dioxide and water in the atmosphere

• State that methane is oxidized to carbon dioxide in the atmosphere.

Methane notes

Methane CFU

4.3.U7:  Peat forms when organic matter is not fully decomposed because of acidic and/or anaerobic conditions in waterlogged soils

• Define peat.

• Outline formation of peat.

4.3.U8:  Partially decomposed organic matter from past geological eras was converted either into coal or into oil and gas that accumulate in porous rocks

• Outline formation of coal.

• Outline formation of oil and natural gas.

4.3.U9:  Carbon dioxide is produced by combustion of biomass and fossilized organic matter

• Define combustion. 

• State the products of a combustion reaction. 

• State sources of fuel for a combustion reaction. 

4.3.U10:  Animals such as reef-building corals and Mollusca have hard parts that are composed of calcium carbonate and can become fossilized in limestone

• State that hard shells, such as in mollusk and coral, are made of calcium carbonate.

Fossil fuels notes

Fossil fuels CFU

4.3.U2:  In aquatic ecosystems carbon is present as dissolved carbon dioxide and hydrogen carbonate ions

• Outline the process that converts CO2 to hydrogen carbonate ion in water, leading to a reduction of the pH in the water.

CO2 in water notes

CO2 in water CFU

Aquatic Carbon Cycle Diagramming 

Old nitrogen cycle slides

Old nitrogen cycle templates

Written review

Nitrogen testing

Nitrogen cycle role play

Role play dice codes

Student “passport”

Teacher “passport” key

Final knowledge audit

Kahoot Review

Quizizz Review

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