Words to know Lithosphere- land Hydrosphere- water Atmosphere- air Biogeochemical Cycles

Biogeochemical Cycles Water Cycle Carbon Dioxide / Oxygen Cycle Nitrogen Cycle

Water Cycle Evaporation – water gains energy Condensation – water loses energy Precipitation – water falling from the sky Transpiration – water vapor emitted from plants Runoff – water traveling on the Earth’s surface Ground water – fresh water trapped underground

Oxygen/Carbon Dioxide Cycle The movement of oxygen and carbon dioxide throughout the lithosphere, atmosphere, hydrosphere, plants, and animals.

Processes that move O2 and CO2 through our environment Photosynthesis Cellular Respiration

Photosynthesis The process by which plants use sunlight to convert CO2 and H2O into sugar and O2. Photosynthesis takes place in the chloroplast. Converts the sun’s energy into chemical energy.

Equation for Photosynthesis

So we have sugar, now what?

Cellular Respiration is the process by which the chemical energy of sugar (food) molecules is released. Oxygen is used, to break the bonds of the sugar and energy is released, along with CO2 and H2O.

Cellular Respiration Equation C6H12O6 + 6O2 6H2O + 6CO2 + E