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Teaching about Data Interpretation
Learners explore a variety of relevant lake water chemistry questions, compose responses, and present their results in a poster format. They, in pairs, answer questions about lake chemistry which are imbedded in this plan.
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Investigating Properties of Water: Temperature
Investigate how temperature affects the density of water and stratification that occurs in bodies of water when temperatures vary. Water of differing temperatures is given different colors to see the layers that form. The lesson is meant...
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Red Cabbage Chemistry
Using the natural pH indicator of red cabbage juice, groups determine the pH of different everyday liquids. As they work, pupils gain an understanding of pH that may help deal with contaminants in the water supply.Â
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Great Lakes Ecology
High schoolers are able to use a secchi disk to measure the turbidity of water by determining the depth at which the sechi disk is no longer visible and using the data in a formula to quantify the results. They are able to use Vernier...
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Drinking Water
In this drinking water worksheet, students complete a crossword puzzle given 23 clues about drinking water purification, water content, contaminants, and softeners.
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Water
Students conduct a series of investigations on the unique properties of water. In this general science lesson, students explain what causes water's surface tension. They explain the different stages in the water cycle.
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Lake Strata and Internal Waves
Use the classic density demonstration of placing a cola, a clear soda, and a diet soda into a tank of water. Then let learners attempt to pour some of the soda into layers in a clear container. The procedure explains a thermocline, and...
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Teaching About the Properties of Water
Students use video, Internet research, graphs and tables, worksheets and hands-on experiments to investigate the properties of water in a lake environment. They work under direction or through an inquiry process.
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Dewey and Chemistry: The Water Cycle Revisited
Students undertake a series of experiments related to the water cycle. All experiments use John Dewey's experiential philosophy as their bases. Each lesson is clearly based on philosophy and attempts to be relevant.
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Stream Chemistry Monitoring
Learners become familiar with real-world gathering of chemical data. The experience how the science is done: the nature of analysis, data collection, interpretation, and presentation. They study a nearby body of water for their experiment.
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Testing the Waters
Students study the quality of water by running chemical tests on the water. First, they measure pH, temperature, phospates, and nitrates in tap (drinking) water and an outdoor water sample. Then they post and evaluate the results of...
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Water Hardness- Causes and Testing
Eighth graders examine what materials cause water hardness and the relative measure of water hardness in a two part lab activity. In part one, 8th graders add an assigned soap test solution to eleven different test tube solutions in...
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Earth System Science
Students explore the Earth and its ability to support life. They discuss the geosphere and the water cycle and complete the Water Wonders activity. After completing the activity, they respond in their journals and reflect upon the...
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Life in a Drop of Water
Students observe the wealth of living organisms in a drop of water from our freshwater ecosystems. They classify the types of organisms observed as single-celled or multi-cellular and use a key or chart to identify and name the organisms...
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Lake Superior Ecology Unit
Sixth graders research Lake Superior and its ecosystem. Students investigate the lake's cycles of mixing and stratification and how these cycles affect the biology of the lake. This lesson contains five days of activities.
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Testing the Waters
Learners use test kits to measure the level of chlorine, iron, sulfide, and dissolved oxygen in tap (drinking) water and stream water. They post and evaluate the results of these water quality tests.
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Water Quality
Students use a microcomputer connected to a conductivity probe to measure the total dissolved solids in local area water samples. Students then compare their measurements with others in their class as well as other standard measurements.
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Chemistry And The Nitrogen Cycle
Students investigate the factors that compose the nitrogen cycle. The harmful effects of acid rain and ozone depletion are also discussed in the lesson. Students define the nutrient that is often limiting to plant growth through...
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Teaching about Increased Conductivity: Are Culverts The Culprits?
High schoolers encounter the complexity of identifying the cause of unusual variations in WOW conductivity data. They propose theories on why there was a sudden increase in conductivity in Ice Lake, Minnesota during July of 1998.
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Teaching about Aquatic Respiration
Students explore respiration in a lake ecosystem by experiment and research.
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Chemical Consequences of Burning Fossil Fuels
Future scientists are introduced to the chemical consequences of burning fossil fuels, learning that fossil fuel combustion leads to the formation of oxides of three nonmetals: carbon, nitrogen, and sulfur, all of which end up in the...
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Life in Extreme Environments - Lakes Under Ice
Students collect chemical, physical, and biological data from a local lake throughout the year. In addition, students discuss the design of an experimental structure for water collection at several specific depths as well as assess the...
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Teaching about the Chemistry of Oxygen Solubility
Students explore solubility of gases in water, Henry's Law, LeChatelier's Principal, and supersaturation of gases in water.
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The Effects of Temperature Variations on the Heartbeat Rate of Daphnia
Students use DigiScope technology to investigate Daphinia, popularly known as water fleas. They design, conduct, and report on an experiment to determine the effects of varying water temperatures on the heartbeat rate of Daphnia.