Hi Everybody!!

Hi Everybody!!
Welcome to my Hometown!!

Thursday, April 25, 2013


Welcome to Rainbow Creek. As most of the World is experiencing rainfall (or snowflakes) right now, I thought we might look into the old element of Water. The only thing wet and wild is You! 
I am high and dry; seeing exactly No Rain from the Computer Cloud System. I am out on the creek watering my flowers with a hose while the weatherman says we have a 70% chance of rain! So your photostudy is on my rainbow creek.
 Next, I went to the Google Index and typed in water. Many entries came up, but I selected the one from Wikipedia for our information study. You might want to check the other entries in the Google Index for yourself, just to see what is there.
Your Vid selections are from the Google You Tube Library and offer many points of view about water. Warning: You may want to make a trip to your bathroom before viewing the water vids!  Enjoy my flowers on the creek!



From Wikipedia, the free encyclopedia

Water is a chemical compound with the chemical formula H2O. A water molecule contains oneoxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces.[1][2]
Water covers 71% of the Earth's surface,[3] and is vital for all known forms of life.[4] On Earth, 96.5% of the planet's water is found in oceans, 1.7% in groundwater, 1.7% in glaciers and the ice caps of Antarctica and Greenland, a small fraction in other large water bodies, and 0.001% in the air asvaporclouds (formed of solid and liquid water particles suspended in air), and precipitation.[5][6] Only 2.5% of the Earth's water is freshwater, and 98.8% of that water is in ice and groundwater. Less than 0.3% of all freshwater is in rivers, lakes, and the atmosphere, and an even smaller amount of the Earth's freshwater (0.003%) is contained within biological bodies and manufactured products.[5]
Water on Earth moves continually through the hydrological cycle of evaporation and transpiration(evapotranspiration), condensation, precipitation, and runoff, usually reaching the sea. Evaporation and transpiration contribute to the precipitation over land.
Safe drinking water is essential to humans and other lifeforms even though it provides no calories or organic nutrients. Access to safe drinking water has improved over the last decades in almost every part of the world, but approximately one billion people still lack access to safe water and over 2.5 billion lack access to adequate sanitation.[7] There is a clear correlation between access to safe water and GDP per capita.[8] However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability.[9] A recent report (November 2009) suggests that by 2030, in some developing regions of the world, water demand will exceed supply by 50%.[10] Water plays an important role in the world economy, as it functions as a solventfor a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70% of the fresh water used by humans goes toagriculture.[11]

File:Iceberg with hole near sanderson hope 2007-07-28 2.jpg
Water in three states: liquid, solid (ice), and (invisible)water vapor in the air. Clouds are accumulations of water droplets, condensed from vapor-saturated air.

Chemical and physical properties

Model of hydrogen bonds (1) between molecules of water

Impact from a water drop causes an upward "rebound" jet surrounded by circularcapillary waves.

Dew drops adhering to a spider web

Capillary action of water compared to mercury
Water is the chemical substance with chemical formula H2O: onemolecule of water has two hydrogen atoms covalently bonded to a single oxygen atom.
Water appears in nature in all three common states of matter (solid, liquid, and gas) and may take many different forms on Earth: water vapor and clouds in the sky; seawater in the oceans; icebergs in the polar oceans; glaciers and rivers in the mountains; and the liquid in aquifers in the ground.
The major chemical and physical properties of water are:
  • Since the water molecule is not linear and the oxygen atom has a higher electronegativity than hydrogen atoms, it carries a slight negative charge, whereas the hydrogen atoms are slightly positive. As a result, water is a polar molecule with an electrical dipole moment. Water also can form an unusually large number of intermolecular hydrogen bonds (four) for a molecule of its size. These factors lead to strong attractive forces between molecules of water, giving rise to water's high surface tension[13] and capillary forces. The capillary action refers to the tendency of water to move up a narrow tube against the force of gravity. This property is relied upon by all vascular plants, such as trees.[14]
  • The maximum density of water occurs at 3.98 °C (39.16 °F).[15] It has the anomalous property of becoming less dense, not more, when it is cooled to its solid form, ice. During freezing, the 'open structure' of ice is gradually broken and molecules enter cavities in ice-like structure of low temperature water. There are two competing effects: 1) Increasing volume of normal liquid and 2) Decrease overall volume of the liquid. Between 0 and 3.98 °C, the second effect will cancel off the first effect so the net effect is shrinkage of volume with increasing temperature.[16] It expands to occupy 9% greater volume in this solid state, which accounts for the fact of ice floating on liquid water, as in icebergs.
  • The density of liquid water is 1,000 kg/m3 (62.43 lb/cu ft) at 4 °C. Ice has a density of 917 kg/m3 (57.25 lb/cu ft).

ADR label for transporting goods dangerously reactive with water
  • Water is miscible with many liquids, such as ethanol, in all proportions, forming a single homogeneous liquid. On the other hand, water and most oils are immiscible, usually forming layers according to increasing density from the top. As a gas, water vapor is completely miscible with air.
  • Water forms an azeotrope with many other solvents.
  • As an oxide of hydrogen, water is formed when hydrogen or hydrogen-containing compounds burn or react with oxygen or oxygen-containing compounds. Water is not a fuel, it is an end-product of the combustion of hydrogen. The energyrequired to split water into hydrogen and oxygen by electrolysis or any other means is greater than the energy that can be collected when the hydrogen and oxygen recombine.[17]

See also

  • The water (data page) is a collection of the chemical and physical properties of water.
Water is described in many terms and contexts:

Liquid water and ice structures
     precipitation according to movement  precipitation according to state

Other topics

The above is only an excerpt fom the Wikipedia page. Please visit the page to view full report:

Introduction to Water




...this is brendasue signing off from 
Rainbow Creek.
See You next time! Sending Joy out for You!
(Thanks everybody for stopping by and all the +1s and comments. I hope You are learning some stuff!)

Of course, one more great performance:

Water Experience - THE MOST RELAXING MUSIC -