Go over the completed chart with students, encouraging them to find similarities and differences among the various lake ecosystems. Invite as a guest speaker someone very familiar with a lake environment. This might include a local or other government official responsible for natural resources, resident of a lake district, boater, guide, or business person. Some students might study lakeside industries that have caused pollution and base a report on successful cleanup efforts. Others might delve into the effects of recreational activities on a lake's ecosystem and use what they learn to develop a list of Dos and Don'ts for swimmers and operators of recreational water vehicles.
Writers can use a lake as the setting of a story.
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