Students are made aware of just how much clean fresh water is wasted as we wait for the water to become warm in our spigot. The students make predictions both in the amount of time and the quantity of water wasted.
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Lesson Plans - ScienceHow can water be conserved? Using sponges as an example, students need and use water daily in many ways, and often in unrealized amounts. Water is used directly for drinking (1/2 gallon a day). The sponges used will represent humans demands on the water supply on earth. The purpose of this activity is to demonstrate to students the effect increased water temperature has on the amount of dissolved oxygen found in water and in turn upon the gill beat rate of fish. 
Students will be able to: 1. Identify 2 or more pollutants in a bog, marsh, stream or other wetland area. The water cycle explains the sun heating the earth’s surface water so that it evaporates. This vapor gathers in clouds which rise to the cold air. When those clouds become too heavy to float, they release their moisture as precipitation. The precipitation collects in lakes or oceans after siphoning through soil or running down rivers. It then evaporates and repeats the cycle once again. |
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