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EVAPORATION CELLULAR RESPIRATION CARBON DIOXIDE PHOTOSYNTHESIS CONDENSATION OXYGEN TRANSPIRATION COMBUSTION PRECIPITATION The Cycling of Matter Every time you take a drink, shower, or flush the toilet, does the earth’s freshwater become less and less?? Every time you take a breath, is there less and less oxygen in the world?? NO!! Matter changes form, but does NOT disappear!! Matter, such as oxygen, water, carbon, nitrogen CYCLE throughout a community. COLD AIR IN ATMOSPHERE Condensation (clouds) Transpiration Evaporation Respiration Oceans/Rivers/Lakes Plants Animals Precipitation Fill in the Blanks and COLOR WATER CYCLE RAP Oxygen Cycle Photosynthesis CO2 O2 Respiration Intro to carbon cycle CO2 Respiration Combustion (burning) of fossil fuels Respiration CARBON CYCLE TAUGHT RIGHT. YEAH CO2 Sugars Photosynthesis respiration Respiration soil Combustion of Fossil fuels Global warming 101 Message from President Death and Decomposition forms fossil fuels Frozen Carbon Perennially frozen ground, known as permafrost, underlies nearly a quarter of the Northern Hemisphere and stores a huge amount of carbon EXTENT OF PERMAFROST Continuous 90% 50% 10% None ANCIENT PLANTS removed carbon from the atmosphere by absorbing carbon dioxide. When the plants died, much of their stored carbon was trapped and frozen in layers of soil and glacial silt OVER THOUSANDS OF YEARS the layers of soil and debris built up to form a deep layer of continuously frozen ground, called permafrost, which now contains twice as much carbon as the entire atmosphere CARBON ESCAPES when organic material in permafrost thaws and decomposes. Carbon dioxide is released in aerated areas, but in lakes and wetlands carbon bubbles up as methane, an especially potent greenhouse gas. Atmospheric Nitrogen (78% of air) Food high in protein: Meat Fish Eggs Milk products DE-nitrification = BACTERIA FOOD Nitrates Nitrification = BACTERIA Nitrites Waste (urine, poop, death) Decomposers Ammonium Nitrogen-fixing bacteria in roots