![]() Have an escape route if you have to leave quickly. If you are, know where to go if the water starts to rise. Determine if you are in a flood-prone area.The National Weather Service has additional information about flood safety and a brochure " Floods and Flash Floods.The Awesome Power". Take time to develop a flood safety plan-for home, work, or school, and wherever you spend time during the summer. Even on the prairie, normally-dry draws and low spots can fill with rushing water during very heavy rain. Hilly and mountainous areas are especially vulnerable to flash floods, where steep terrain and narrow canyons can funnel heavy rain into small creeks and dry ravines, turning them into raging walls of water. Stationary or slow-moving thunderstorms produce heavy rain over small areas and increase the risk of flash flooding. As the dew point increases, so does the potential for the amount of rain produced by a thunderstorm increase. The amount of moisture in the atmosphere is indicated by the dew point temperature. So, by adding no drops will help in the students understanding of how little water is in those two locations. Obviously, the last two, atmosphere and river, will be nearly impossible to obtain. Transfer the following amounts of water FROM beaker #1 to each of the remaining beakers.Write their estimates on the chalk board. ![]() ![]() Ask the students how much water must be transferred from beaker #1 into each of the remaining beakers representing the portion of water in each section.Inform the students to assume the earth's total water supply has been reduced to 1000 ml as indicated in beaker #1.Label the following beakers: beaker #2 "glaciers & icecaps", beaker #3 "groundwater", beaker #4 "fresh-water lakes", beaker #5 "inland seas", beaker #6 "soil moisture", beaker #7 "atmosphere", and beaker #8 "rivers".Label beaker #1 "oceans" and fill it with 1000 ml of water.TOTAL TIMEĮight (8) 1000 ml beakers, Plastic cup, Eyedropper The students will discover the different water ratios in the earth's total water supply. Water is contained in the oceans, icecaps & glaciers, ground water, fresh-water lakes, inland seas, soil moisture, atmosphere, and rivers. There are approximately 336,000,000,000,000,000,000 gallons of water on the earth, existing in three states solid, liquid and gas. It is essential to life and is a major component of all living things. Water is the most abundant and important substance on Earth.
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