Evaporation Videos

Learn proper watering amounts and techniques for keeping your lawn moist and avoid drying out or wilting grass during hot summer months. Choose the appropriate time of day to achieve optimum watering conditions. For more information visit http://www.homedepot.com/knowhow

Learn proper watering amounts and techniques for keeping your lawn moist and avoid drying out or wilting grass during hot summer months. Choose the appropriate time of day to achieve optimum watering conditions. For more information visit http://www.homedepot.com/knowhow

All you need to know about the water cycle. =) *Hehe, and don't mind the end--- we were just really happy that we finally recorded w/o mistakes. xD* Singers: Jimmy & Kim Guitarist: Jimmy Lyrics: The water cycle is a combination With lots of different information That we have to know to pass our test It starts with water's evaporation From oceans, lakes and reservations This is why biology's the best Along with this is transpiration From leaves and other forestation Now that vapor builds up in the air It does this through condensation Lots of clouds in a formation Now there's lots of H2O to spare Water falls in precipitation It is quite a transformation Snow or sleet or rain or hail, its nice Next is runoff and percolation Soil goes through this hydration This all repeats we think this will suffice *Evaporation, transpiration Condensation, precipitation Runoff and percolation * repeat x 2 Author: kimmygorawr Keywords: water cycle evaporation transpiration condesation precipitation lyrics Added: April 18, 2009

The view from my office has very few benefits, but after a rain storm I saw this. Author: bokashiman Keywords: steam rain evaporation sun vancouver bc 07oct 2007 Added: November 10, 2007

If you have ever been hard at work, trying to keep sweat from dripping into your eyes or onto your work, you might have wondered why we have to sweat.To find out, you will need: - your hand - water - rubbing alcohol - cooking oil First, blow on the back of your hand. Notice how it feels. Now, dip a finger in some water and rub it across the back of your hand to wet it. Blow on your hand again. Do you notice a difference? You should notice that it is cooler. Dry the back of your hand and try the experiment again, this time with rubbing alcohol instead of the water. Notice the temperature change when you blow on it. Dry your hand and try it once more, this time with cooking oil. Again, blow and notice the temperature sensation. What did you discover? When you blew on the wet skin, it felt cooler than dry skin. When you blew on the skin with alcohol, it was much cooler. When you blew on the skin with oil, you did not notice much of a difference from dry skin. The cooling sensation is due to evaporation. As a liquid evaporates, it absorbs heat from its surroundings. This produces a cooling sensation on your skin. The faster the liquid evaporates; the cooler it feels. Since the oil does not evaporate, it does not produce a cooling sensation. What does this have to do with sweating? When you get hot, you sweat. As the perspiration evaporates, it cools your skin. The humidity already in the air also has an impact on how fast water evaporates. High humidity causes perspiration to evaporate more slowly, causing you to feel hot and sticky. Low humidity lets the moisture evaporate quickly, leaving you feeling cooler and dry, leading people to say that the American southwest is more comfortable because "it's a dry heat." Have a wonder-filled week.