water_cycle - University of Florida Chemistry Outreach...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
University of Florida Chemistry Outreach Program The Water (Hydrologic) Cycle Estimated Time: 50 mins. + 10 mins. clean-up Topics: Environmental water cycle, Phases of water, SC.B.2.3 Introduction: The water (hydrologic) cycle is among the most fundamental of Earth’s natural processes. Not only does it help explain common phenomena such as rain, snow, and other forms of precipitation, but it is also key to our understanding of water’s chemistry. As it progresses through the cycle, water will shift between its gas, liquid, and solid phases. These phase changes help facilitate the cycle as water molecules undergo the processes of evaporation, condensation, precipitation, runoff, and infiltration. Water that is not actively shifting from one phase to another often exists in what is known as a reservoir. Among the many reservoirs in which water (or its derivatives) is found include soil, plants, rivers, clouds, oceans, lakes, animals, groundwater wells, and glaciers. Objective: This lab will reinforce the basic principles of the water cycle, with an emphasis on the physical and chemical changes that take place. It is suggested that instructors review or introduce some of the material before the lab session takes place, especially for younger students (grade 7 or less). A strong understanding of the water cycle will give students a basic appreciation of the renewable and cyclic nature of many of Earth’s natural resources, preparing them for more advanced discussions regarding Nitrogen, Phosphorous, and Carbon in later studies. This particular activity will also demonstrate that there are a number of different paths that water can take to progress through the cycle; furthermore, successfully completed labs will allow students to realize that there is neither a start nor a finish to the process. Materials: -9 “stations” (clumped desk areas) + reservoir labels for each (Soil, Plant, River, Clouds, Ocean, Lake, Animal, Ground water, Glacier) -NSF Reservoir cubes (printed, cut, and assembled) -NSF Student handout
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/18/2011 for the course CHM 3218 taught by Professor Stewart during the Spring '08 term at University of Florida.

Page1 / 4

water_cycle - University of Florida Chemistry Outreach...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online