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science water cycle

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PRESENTATION OUTLINE

WATER CYCLE

  • Water plays many different roles on the earth.
  • Some is at the poles in ice caps and some in the snow and glaciers at the top of hight mountains.
  • Some is in lakes and streams.
Photo by BLMOregon

EVAPORATION

  • Evaporation is the name given to the process in which a liquid is converted to the gaseous state.

CONDENSATION

  • You don't have to look at something as far away as a cloud to notice condensation, though. Condensation is responsible for ground-level fog, for your glasses fogging up when you go from a cold room to the outdoors on a hot, humid day, for the water that drips off the outside of your glass of iced tea, and for the water on the inside of the windows in your home on a cold day. The phase change that accompanies water as it moves between its vapor, liquid, and solid form happens because of differences in the arrangement of water molecules. Water molecules in the vapor form are arranged more randomly than in liquid water. As condensation occurs and liquid water forms from the vapor, the water molecules become organized in a less random structure, which is less random than in vapor, and heat is released into the atmosphere as a result.
Photo by AdamKR

PRECIPATION

  • Moisture overriding associated with weather fronts is an overall major method of precipitation production. If enough moisture and upward motion is present, precipitation falls from convective clouds such as cumulonimbus and can organize into narrow rainbands. Where relatively warm water bodies are present, for example due to water evaporation from lakes, lake-effect snowfall becomes a concern downwind of the warm lakes within the cold cyclonic flow around the backside of extratropical cyclones. Lake-effect snowfall can be locally heavy.

COLLECTION

  • Water and water rights are among the state's divisive political issues. Lacking reliable dry season rainfall, water is limited in the most populous U.S. state. An ongoing debate is whether the state should increase the redistribution of water to its large agricultural and urban sectors, or increase conservation and preserve the natural ecosystems of the water sources.

BRELON REYNOLDS

THE CARBON CYCLE PLANTS PULL CARBON FROM THE AIR AND ANIMALS EAT THE PLANTS CARBON (C) IS THE BASIS OF LIFE ON EARTH. SCIENTISTS CONSIDER 99.9% OF ALL ORGANISMS ON THE PLANET TO BE CARBON BASED LIFE. THOSE ORGANISMS NEED CARBON TO SURVIVE. WHETHER THE CARBON IS IN THE FORM OF A SUGAR OR CARBON DIOXIDE GAS, WE ALL NEED IT. UNLIKE ENERGY, CARBON IS CONTINUOUSLY CYCLED AND REUSED. THE EARTH ONLY HAS A FIXED AMOUNT OF CARBON. THE CARBON CYCLE IS THE ULTIMATE FORM OF RECYCLING. START WITH PLANTS PLANTS ARE A GOOD STARTING POINT WHEN LOOKING AT THE CARBON CYCLE ON MOLECULELL

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