This presentation reviews the complete water cycle, including some of the constructed water cycle. Used as an environmental overview for life science and environmental. Geared for Secondary students, but also could be used as an intro for up to College level classes.

1. The Water Cycle !!
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2. A Cycle, but
Not a
Water Cycle!
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3. A Water Cycle, yet not The Water Cycle
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4. Water Cycle Diagram – Instructions
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5. Instructions
1. Review the presentation
1. Write the name of each process below the diagram in the
area labeled A->P
2. Write descriptions of each water cycle process as needed
1. Identify the processes that are opposite to each other
2. Review the definitions of each process
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6. Vapor = TransportationA. Transportation – moving H2O
Movement of water from
one place to another
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7. CondensationB. Evaporation & C. Condensation
Liq => Gas Gas => Liq
Condensation – gaseous water or vapor
changing into a liquid
Evaporation – liquid water changing
into a gas or water vapor
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8. D. Transpiration (Liq => Gas fm Tree leaves)
Water that moves through and
evaporated from plants
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9. PrecipitationE. Precipitation (falling H2O.)
Condensed water (rain, sleet, snow & hail) that falls to the ground
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10. http://www.erh.noaa.gov/rnk/Newsletter/Fall%202005/thunderstorm.jpg
E. Precipitation (falling H2O.)
Condensed water (rain, sleet, snow & hail) that falls to the ground
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11. http://veimages.gsfc.nasa.gov/355/PIA02727_md.jpg
F. Surface Run off - on Oahu (moving H2O)
Water from rain, snow or ice melt that
flows over the land surface
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12. http://www.geologywales.co.uk/coedybrenin/pyritised.jpg
G. Infiltration & H. Percolation
H2O penetrate soil surface H2O penetrate soil layers
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13. http://www.geologywales.co.uk/coedybrenin/pyritised.jpg
SUMMARY
G. Infiltration & H. Percolation
H2O penetrate soil surface H2O penetrate soil layers
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14. I. Aquifer – H2O in sand & gravel layers
Storage of water underground.
Underground water is called
“groundwater”. This water is
stored in the spaces between
sand & gravel.
Layers in soil show
evidence of water
beneath the surface
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15. J. Groundwater Flow (H2O flow underground)
Movement of groundwater
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16. Man with a
Dousing Rod
In the early
1920’s
“finding water”
Superstitious people
believed some had the
“gift” to sense water
underground!
Dowsers made a lot of
money for their ‘talents’.
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17. Groundwater Quality issues
If groundwater becomes contaminated, the polluted water flows
through the aquifer, spreading to other areas over time.
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18. http://www.fws.gov/ChesapeakeBay/Newsletter/Summer05/Streams/Flowing%2520stream.gif
K. Return Flow – H2O flow on surface to lakes etc
Surface water flowing downhill to a larger water body
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19. K. ‘Hidden’ Return flow from Human Use
Water flow / pumped to a larger water body after human use.
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20. http://upload.wikimedia.org/wikipedia/en/9/90/Sunset_Marina.JPG
L. Accumulation – H2O liq. in large areas
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21. http://global-warming.accuweather.com/e8f1dea87-thumb.jpg
L. Accumulation - H2O sol. in large areas
Gathering of large amounts of water over time in the form
of liquid water, snow, or ice.
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22. http://www.lrn.usace.army.mil/op/cen/rec/images/scenic_lake2.jpg
L. Accumulation - H2O liq. in large areas
Gathering of large amounts of water over
time in the form of liquid water, snow, or
ice.
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23. http://upload.wikimedia.org/wikipedia/commons/8/89/DryIceSublimation.JPG
M. Sublimation Solid=>Gas (Dry Ice)
Changing from a solid to a gas. Example, ice cubes in a freezer get
smaller as they “sublime” over time.
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24. N. Deposition
Gas => Solid
Water physically
changing directly from a
gas to a solid.
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25. http://personalrefrigeration.com/images/PR%20images/melting_ice_cubes.jpg
Water physically
changing from a solid to
a liquid.
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26. http://en.wikipedia.org/wiki/File:ICERAIN2.JPG Attribution ShareAlike 2.5
P. Freezing - Liquid => Solid
Water physically changing from a liquid into a solid.
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27. Hydrological or “Water” Cycle
Infiltration &
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