THE WATER CYCLE AND WATER TYPES

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THE WATER CYCLEANDWATER TYPES

• Geography / Chapter 2
• 7th Red Team- DTurner

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WATER FORMS

• Water exists in three forms
• Liquid, Frozen, Vapor
• Liquid- rivers, lakes, oceans
• Frozen- glaciers, ice sheets
• Vapor- water in gas form

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WATER

• The amount of water on earth does not change
• Water is constantly moving from oceans, to air,
  to the ground and back to the oceans
• This is the water cycle

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EVAPORATION

• The sun drives the water cycle
• The sun evaporates water from-
• Oceans, lakes, rivers, streams
• Evaporation- changing water to vapor
• The amount of water vapor the air holds depends
  on air temperature
• Warm air holds more water vapor

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CONDENSATION

• Warm air rises and cools at higher elevations
• As water vapor cools it condenses
• Condensation is water vapor changing to liquid
  form

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PRECIPITATION

• Tiny droplets of water form clouds
• Droplets become heavier than air and fall in the
  form of precipitation
• Air temperature determines form
• Forms of precipitation
• Rain, snow, sleet, hail

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WATER CYCLE CONTINUES

• Some precipitation soaks into the ground and
  collects in streams, rivers, and lakes
• Surface runoff, ground water and rivers return
  water to the oceans
• Soon, evaporation occurs and the cycle repeats

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THINK ABOUT IT

• Its a hot day.
• You go to get a drink of water, but nothing comes
  out of the faucet.

• What do you do?
• How important is water to us?
• In a single day how do we use water?

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TYPES OF WATER

• Surface water can be-
• Freshwater
• Saltwater
• Freshwater is most important to humans

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FRESHWATER

• Only 3 of water is freshwater
• Of that, 2 is in frozen form
• Glaciers
• Ice Sheets

• Glaciers, lakes and rivers are freshwater

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GROUND WATER

• Ground water is freshwater
• It fills tiny cracks and holes in rock layers
• Large underground reservoirs are aquifers and its
  water flows

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SALT WATER

• Oceans contain salt water
• The oceans make up 97 of all water
• We can sail from ocean to ocean without touching
  land

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FOUR MAJOR OCEANS

• Atlantic Ocean
• Pacific Ocean
• Indian Ocean
• Arctic Ocean

• Be able to name them
• Be able to locate them

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FACTS

• Salt Water
• Seas
• Gulfs
• Bays
• Straits

• Pacific Ocean
• Largest and deepest
• 64 million square miles
• Mt. Everest would sink

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VOCABULARY REVIEW

• Water Vapor
• Water Cycle
• Evaporation
• Condensation
• Precipitation
• Groundwater
• Surface water

• Aquifer
• Forms of Precipitation
• Freshwater
• Salt Water
• Run Off
• Glacier

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