Presentation on theme: "Cycles of Matter Ch. 5 sec. 2 Water Carbon Nitrogen Phosphorus."— Presentation transcript:
Cycles of Matter Ch. 5 sec. 2 Water Carbon Nitrogen Phosphorus
All living things need: Water Minerals Other compounds 95% of an organism is made of Oxygen Carbon Hydrogen Nitrogen
What is the difference between ENERGY FLOW and CYCLES OF MATTER? Energy flows one way! (open system) Matter recycles again and again! (closed system)
Matter is neither created nor destroyed, just reused in different forms of life and the physical environment.
Biogeochemical cycle: chemicals cycle through the biotic and abiotic parts of the Earth.
An Outhouse for the Sea
The Water Cycle Water cycles between atmosphere, land, and ocean. Condensation - gas to liquid Precipitation - liquid or solid falls Evaporation - liquid to gas Transpiration - evaporation from plant leaves Runoff – water running off land Groundwater – water under ground Percolation (infiltration) – water soaking into ground
The Carbon Cycle Combustion - burning (combining C w/ O 2 ) Cellular respiration – breathing out CO 2 Photosynthesis – plants take in CO 2 and give off O 2 Decomposition – bacteria give CO 2 off when they break down dead organisms.
The Nitrogen Cycle N 2 gas is “fixed” into ammonia (NH 3 ) by bacteria. Plants absorb N and animals take in N when they eat plants. (makes muscle) Ammonia from waste is converted back to nitrite and then nitrate by bacteria.
New Nitrogen Cycle Research
The Phosphorus Cycle P makes up ATP and DNA P in soil and rocks dissolves in water and is absorbed by plants as nutrient. Animals eat plants and get P Dead animals return P to soil