1. How the stuff of life is transported, allocated, and incorporated
Biogeochemistry
How the stuff of life is transported, allocated, and incorporated

2. CO2 Carbon Carbon is the basis for life Why is carbon special?
Litter
Duff
Soil
ALL Life!
CO2
Plankton
CaCO3
Hydrosphere
Atmosphere
Biosphere
Carbon is the basis for life
Why is carbon special?
Bonding
Abundance
The carbon cycle

3. Oxygen Most abundant element of earth’s crust Properties Respiration
Electronegativity
Oxidation – REDOX reactions
Respiration

5. Hydrogen Most abundant element in the universe – big bang origins
Water
Carbon chains pH
Proton pump

6. Compounds and Atomic Structures
Compounds are specific combinations of elements
Atoms are the smallest indivisible units of elements
Protons (+) determine the element
Neutrons add to the weight, determine isotope
Electrons bond

7. Radioactive Isotopes
Radioactive isotopes contain unstable nuclei – energy released
Bond of neighboring compounds can be broken
Damage to DNA
Cancer
Birth Defects
Radioactive Tracers

8. Electron Arrangement Energy levels Valence Shell Unpaired electrons
Bonding

9. Ionic Bonds Strongest bond Transfer of electron(s)
Change of total charge

10. Covalent Bonds Sharing of electron(s) Double bond
Valence (bonding) capacity

11. Polarity s