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Science - Kindergarten
Standard 1 Objective 2
1 class periods of 15 minutes each
Students will review the water cycle through a relay race vocabulary game.
Water doesnt disappear with our use of it for irrigation, manufacturing, and other sources of consumption. The water we have today is the same water we had at the beginning of time. Water forms, dissipates, and forms again in a cycle called the hydrologic or water cycle.
The water cycle is a gigantic circulation system operating in the atmosphere and on the earths lands and oceans. Being a cycle, there is no beginning or ending, but for illustration, lets begin with waters of the oceans which cover about three-fourths of the earth.
Water from the surface of the ocean EVAPORATES into the atmosphere. The evaporation from the ground and bodies of water combined with the TRANSPIRATION of plants is EVAPOTRANSPIRATION. That moisture is lifted, eventually is CONDENSED, and falls back to the earths surface as PRECIPITATION.
Precipitation that falls as rain, hail, sleet, or snow is important to people and agriculture. After wetting the plants and the ground, some of the precipitation RUNS OFF into STREAMS and other waterways. This is the water that often causes erosion and is the main contributor to floods. Not all of the precipitation runs off. Some soaks into the ground and is available for evaporation. Some of it PERCOLATES (or INFILTRATES) through the ground and resurfaces at springs. Some seeps to maintain and replenish streams during dry periods. The streams eventually lead back to oceans, where the water is again evaporated into the atmosphere.
Discuss with the students what would happen if pollutants were introduced into the water cycle.
These activities can be used to enhance or reinforce concepts and vocabulary words learned in the preceding lessons.
This lesson plan was developed by the Utah State University Water Quality Extension.
*Adapted from activity I-3 Water Cycle Relay Race in the manual Water Conservation and Non-point Source Pollution by Dr. Kitt Farrell-Poe.