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Cycles of Matter

Cycles of Matter. Water cycle Carbon/Oxygen Cycle Nitrogen Cycle. Water Cycle. W.C. is a continuous process in which water moves from Earth’s surface into the atmosphere and back. There are 3 main parts Evaporation: the process by which liquid water becomes a gas

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Cycles of Matter

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  1. Cycles of Matter Water cycle Carbon/Oxygen Cycle Nitrogen Cycle

  2. Water Cycle • W.C. is a continuous process in which water moves from Earth’s surface into the atmosphere and back. • There are 3 main parts • Evaporation: the process by which liquid water becomes a gas • Energy is needed in order for evaporation to take place • This energy comes from: THE SUN

  3. Water Cycle • Condensation: the process by which water vapor becomes liquid. • Energy is released when condensation occurs • Water droplets collect on dust to form clouds • Precipitation: rain, snow, sleet, hail falling from the sky

  4. The Water Cycle

  5. Carbon/Oxygen Cycle • Producers and consumers combine to recycle carbon and oxygen • Producers take in carbon dioxide from the air during photosynthesis and store it and produce oxygen as a waste product • They use it to make sugars and starches (FOOD) • Ex. glucose • Consumers eat the producers and absorb the carbon food molecules

  6. Carbon/Oxygen Cycle • Consumers take in this food and through the process of respiration create carbon dioxide as a waste product. • When consumers die, decomposers break down the remaining carbon and return it to the soil. Decomposers also create carbon dioxide. • Any type of burning of fossil fuels also releases Carbon dioxide into the air. • HOW HAVE WE CHANGED THE CARBON/OXYGEN CYCLE?

  7. Examples of the Carbon/Oxygen Cycle

  8. Nitrogen Cycle • The nitrogen cycle moves nitrogen from the air to the soil, into living things and back into the soil and back into the air. • Most organisms can’t use “Free” nitrogen (gas) • Nitrogen Fixation: this is the process that changes “free “ nitrogen into useable nitrogen • Most nitrogen fixation is done by bacteria (commonly found on plant roots)(legumes) • Once nitrogen has been “fixed” it can be used by organisms.

  9. Nitrogen cycle • Plants and animals absorb the nitrogen • Decomposers break down their waste and dead plant material and return the nitrogen back to the soil • Bacteria then absorbs the nitrogen and converts it back into “Free” nitrogen gas by the process of denitrification. • Nitrogen can cycle through plants and animals many times but eventually is returned to the air

  10. Examples of the Nitrogen Cycle

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