In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish. Learners observe their mini-ecosystem over time to see what changes--such as the color of the water, the water temperature, plant growth, and behavior and/or population of the snails or fish. The activity serves as a model for larger freshwater ecosystems such as ponds, lakes, rivers, streams, wetlands, reservoirs and groundwater.
Keywords:Informal Education,aquatic,Oceanography,NSDL,habitat,Ecosystems,Earth and Space Science,Biological science,Conducting Investigations,Biodiversity,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-056,Earth Structure,adaptation,Middle School,Diversity of Life,guppy,Social Sciences,Communicating Results,Space Science,biome,Chemistry,Upper Elementary,Populations,High School,duckweed,Elementary School,Gathering Data,Life Science,oai:nsdl.org:2200/20110926123759836T,Ecology, Forestry and Agriculture,Plants,elements,Animals,Formulating Explanations,living,General,water snail,abiotic,sustainability,elodea,Education,General science,biotic,waterweed,marine,Life Sciences,Ecology,ecosystem,Earth system science,lifespan,Oceans and Water,Geoscience,Science and society,Space science,freshwater,The Scientific Process,Asking Questions,nonliving