chem strip

chem strip

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  • Bernard Palsy was the founder of the "modern" theory of the water cycle
  • As we develop our land and increase the amount of paved surfaces and buildings, known as impervious cover, the water cycle is changed. Less rainfall and snowmelt sinks into the ground and more water flows rapidly over the land into our lakes, rivers and estuaries. Stormwater runoff can lead to increased flooding, erosion, pollution and decreased groundwater recharge during dry periods.
  • The water cycle is a natural process
  • STEP #1 EVAPORATION- is when water disappears from an ocean, lake, pond, stream, or even a water glass that you drink out of. That water disappears because of heat. STEP #2 Condensation-After the water evaporates from the heat, it condensates. It is when water droplets mix together with tiny particles of dust from the atmosphere, and that's what forms clouds.
  • STEP #3 Precipitation- is when enough water pressures the cloud (filling the cloud up with water) to make it snow, rain, sleet, or hail. STEP # 4 Transpiration- in which water evaporates from a solid, like a plant, tree, or the ground CLOUDS When water droplets (condensation) form together with dust it becomes a cloud.
  • The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat. Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds...clouds that move over the globe and drop rain and snow. This process is a large part of the water cycle.
  • When the water cycle was first discovered it was used to help contain groundwater.
  • The major physical components of the global water cycle include the evaporation from the ocean and land surfaces, the transport of water vapor by the atmosphere, precipitation onto the ocean and land surfaces, the net atmospheric transport of water from land areas to ocean, and the return flow of fresh water from the land back into the ocean. The additional components of oceanic water transport are few, including the mixing of fresh water through the oceanic boundary layer, transport by ocean currents, and sea ice processes.
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