Chapter 9 water
1 / 39

Chapter 9 - Water - PowerPoint PPT Presentation

  • Uploaded on

Chapter 9 - Water. Water Cycle Water Budget. The World’s Water. Oceans, lakes, rivers, groundwater, atmosphere, living things, glaciers, and more… Water is measured by volume. “How much space it takes up.” 97 % is in the oceans. The World’s Water. Less than 3% is fresh!!!

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Chapter 9 - Water' - bryar-kidd

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Chapter 9 water

Chapter 9 - Water

Water Cycle

Water Budget

The world s water
The World’s Water

  • Oceans, lakes, rivers, groundwater, atmosphere, living things, glaciers, and more…

  • Water is measured by volume. “How much space it takes up.”

  • 97 % is in the oceans

The world s water1
The World’s Water

  • Less than 3% is fresh!!!

    • 2/3 is frozen in ice caps

    • Rest is fresh (usable) water

    • Works out to be less than 1/2 of 1%

OCEANS 97.2%



LAKES 0.013%

SOIL 0.006%


RUNNING 0.0002%


Where is the fresh water
Where is the fresh water?

  • Tiny part is flowing on the surface of Earth (rivers, streams)

  • 100 times that is stored in lakes, swamps, etc.

  • 50 times that is stored in the ground as groundwater.

Water cycle
Water Cycle

  • Again like all matter, water is recycled.

  • Simple water cycle (Magnificent 7):

    Evaporation-liquid to gas

    Transpiration-liquid to gas in plants

    Sublimation-solid to gas

Water cycle1
Water Cycle

Condensation–Gas to liquid-clouds

Precipitation-gas to liquid/solid

Runoff-running water on surface

Groundwater-soil moisture, water underground

Water budget
Water Budget

  • Compares the input (water you get) and output (water you use) of water in a specific region.

Water budget1
Water Budget

  • Controlled by many different climate factors

    • Air temperature

    • Humidity (Season Extremes)

    • Rainfall amount

    • Soil Type

Water budget graphs
Water Budget Graphs

  • A comparison between Moisture supply (precip) and Moisture demand (evap)

  • A water budget has 4 parts: usage, recharge, surplus, and deficit

Water budget graphs1
Water Budget Graphs

  • Usage – When plants, humans, sun is taking water out of the system.

  • Recharge - When the ground water is being filled back up

Water budget graphs2
Water Budget Graphs

  • Surplus - Rainfall is greater than the need. Soil is moist.

  • Deficit - Need for moisture is greater than the rainfall coming into the system. Soil is dry

Rocks holding water
Rocks Holding Water??

Porosity – Volume of space in between rocks/soil that can hold water

Permeability – The rate at which water can pass through the pore spaces of rock/soil

Rocks holding water2
Rocks Holding Water??

  • Impermeable – Water cannot pass through the pore space.

  • Capillary – Ability of water to “stick” to its surroundings by its surface tension

Water table1
Water Table

  • Ground becomes saturated with water. This is the ground water that we have been talking about.

  • Water Table – The top portion of the “zone of groundwater saturation”

Water table2
Water Table

  • Zone of Aeration – Water and air mixed with the rocks and soil

  • Capillary fringe – Border between air/water and just water. Right above the water table (pg. 154)

  • Zone of Saturation – Just water in the soil and no air

Wells and springs
Wells and Springs

  • Ordinary well - A hole dug or drilled down below the water table. ( water must be pumped out)

  • Spring - Place where the water table is at the surface.

  • Artesian well - A well that is pressurized. (water will not have to be pumped out)


  • Are permeable materials that contain and carry groundwater

    • Best are - Sand, gravel, and porous sandstone

Link to Page About Water Resources