Information about Water?
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For all things water see http://en.wikipedia.org/wiki/Water
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Water\n\nYes, water is a nutrient. It is the most important nutrient. In fact, your body is approximately 50 to 55 percent water. Your body uses water 24 hours a day. A by-product of the energy production in your body is heat. Water regulates your body temperature by dissipating that heat. Water also carries nutrients to the cells in your body. Water does not produce energy.\n\nCarbohydrates\n\nCarbohydrates are the primary source of energy for your body. Carbohydrates power every system in your body, including your brain, heart, muscles and internal organs.\n\nCarbohydrate can be simple (table sugar, corn syrup) or complex (whole grain). Simple carbohydrates enter your bloodstream very quickly. That is why you get a sugar high when you eat candy. Complex carbohydrates are processed and used more slowly.\n\nProtein\n\nProtein is like the brick and mortar of your body. It is the building blocks that provide the structure for the tissues of your body. Proteins are also used to transport essential elements in your blood stream.\n\nFats\n\nFat are our storehouses of energy. When we have excess nutrients in our body, some of it is stored as fat. The primary purpose of fat is energy production.\n\nThere are two main types of fats – saturated and unsaturated. Animal fats (meat, butter, lard) are usually saturated fats and contribute to heart disease and cancer. Vegetable fats (olive oil, corn oil) are generally unsaturated fats and are less harmful.\n\nSome fats have been found to be helpful in preventing some cancers and heart disease. These fats called omega-3 fatty acids are found in some fish, especially cold-water fish.\n\nVITAMINS\n\nVitamins are essential for the regulation of many of the functions of the body. Most vitamins cannot be manufactured by the body and must be obtained from your diet. Vitamins do not produce energy.\n\nMINERALS
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Here's a data base of world rivers.........maybe more than you wanted to know, monthly data for many years along with average monthly and yearly discharges\n\nhttp://www.sage.wisc.edu/riverdata/
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True. water is essential for the transport of nutrients within them, since it is the "universal solvent".
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I hope the sources of info. I give u would help!
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Water Systems:\n\nhttp://www.ec.gc.ca/water/images/nature/prop/a2f2e.jpg\n\n95% of Earth's water is Salt Water leaving 5% as Fresh Water.  Nearly all of the Fresh water is in the form of Ice or underground.\n\nThis site appears to have a lot of data as well as activities for learning.\n\nhttp://members.aol.com/bowermanb/water.html
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Water is important to all living things. Up to 60% of the human body is water, the brain is composed of about 70% water, blood is 82% and the lungs are nearly 90% water. Water is the principal constituent of the fluid that surround and are within all living cells. (Nutrition Almanac) Only oxygen is more important than water in sustaining life.\n\nThe body needs to remain sufficiently hydrated, otherwise all organs begin to shut down.\n\nFor more info, see:\n\nhttp://www.oxy.cc/
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water, water and more water
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Water, you can not sustain life without it. That includes every form of life, man, animal, forests, bacteria, etc. Everything!\n\nAir, which contains oxygen on which we as human beings depend on for our dear life.\n\nSunlight, which is the beginning of our very existence. Imagine what life would be if there was no sun. \n\nThere are many other natural resources which surround us on this wonderful planet called the Earth. But I would say that these three definitely top the list.\n\nBy the way, you ask very intelligent questions. Good for you to be so concerned about your enviornment.
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http://www.hydroinformatics.org/
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Need more information.
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water in form of seas ,river,oceans,pond etc
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You'll probably want to know typical values for drinking water and sea water.\n\nNormally, water contains dissolved salts with Na, K, Ca, Mg and depending on quality Fe and Mn as main kations and carbonate (and hydrogen carbonate), chloride, sulfate and to (hopefully) lesser extent nitrate and phosphate ions. There are numerous possibilities to combine these ions into solid salts, making the exercise fairly pointless.\n\nIf your teacher insists, Na and K for all the anions except HCO3(1-) and CO3(2-) which usually are written as Mg and Ca salts.\n\nCommon trace elements/compunds include Al, Si, NO2(1-), Li.\n\nMore or less routinely monitored heavy metal traces include As, Cd, Cr, Co, Cu, Ni, Hg, Pb, Sb, Tl, Zn
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http://www.freedrinkingwater.com/water-education/water-health.htm\n\nThis link will give you 4 reasons, and more that it is important for human health.
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I wasn't sure of what level of detail you were looking for.\n\nEasier to understand:\nhttp://ga.water.usgs.gov/edu/wwvisit.html\n\nhttp://www.humboldt.edu/~ere_dept/marsh/flow1.html\n\nMore difficult to understand:\nhttp://waterhome.brc.tamus.edu/texasyst/household.html\n\nhttp://www.knovel.com/knovel2/Toc.jsp?SpaceID=10086&BookID=290
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How about something dealing with providing potable water or water purification... that's a heck of a subject and there should be tons of information about it on the Internet.  Besides... with the fact that drinkable water is becoming harder to obtain and the costs are going up to provide that commodity, water science will be a real 'Biggie' in the near future.
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Water is H2O. Two hydrogen and one oxygen. Water is the universal solvent because it mixes well with most substances. Water is the most common and mysterious substances on earth. Water is suppose to be a gas ,but it's a liquid at room temperature. Water has a negative side (oxygen) and a positive side (hydrogen). This is another reason why water is the universal solvent it can dissolve just about any solute because the H and O are at 102o angel which means it can pick up most solutes. 97% of the earth's water is salt water will only less than 3% is drinkable. 70% of the earth's animals live in salt water. All animals need water.