Chemically Testing for Water Quality

Chemically Testing for Water Quality - Chemically Testing...

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Chemically Testing for Water Quality Lesson focus: water quality testing Lesson objectives: Follow complex directions to complete chemical water tests to include ph, dissolved oxygen, phosphate, nitrate, alkalinity, or settable solids Record gathered data in field notebook, including observations and results of chemical testing Construct a data chart and graph to depict the results of the chemical testing Write a report using collected data to make conclusions on water quality at the sample site and factors affecting the quality at that site. Analyze and compare collected data in order to assess the overall quality of the body of water Enduring Understanding: Humans impact the water quality in a watershed. All living things need good water quality for their survival. Georgia Performance Standards : SCSh1. Students will evaluate the importance of curiosity, honesty, openness, and skepticism in science. a. Exhibit the above traits in their own scientific activities. b. Recognize that different explanations often can be given for the same evidence. c. Explain that further understanding of scientific problems relies on the design and execution of new experiments which may reinforce or weaken opposing explanations. SCSh2. Students will use standard safety practices for all classroom laboratory and field investigations. a. Follow correct procedures for use of scientific apparatus. b. Demonstrate appropriate technique in all laboratory situations. c. Follow correct protocol for identifying and reporting safety problems and violations. SCSh3. Students will identify and investigate problems scientifically. a. Suggest reasonable hypotheses for identified problems. b. Develop procedures for solving scientific problems. c. Collect, organize and record appropriate data. d. Graphically compare and analyze data points and/or summary statistics. e. Develop reasonable conclusions based on data collected.
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f. Evaluate whether conclusions are reasonable by reviewing the process and checking against other available information. SCSh4. Students use tools and instruments for observing, measuring, and manipulating scientific equipment and materials. a. Develop and use systematic procedures for recording and organizing information. b. Use technology to produce tables and graphs. c. Use technology to develop, test, and revise experimental or mathematical models. SCSh6. Students will communicate scientific investigations and information clearly. a. Write clear, coherent laboratory reports related to scientific investigations. b. Write clear, coherent accounts of current scientific issues, including possible alternative interpretations of the data. c. Use data as evidence to support scientific arguments and claims in written or oral presentations. d. Participate in group discussions of scientific investigation and current
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Chemically Testing for Water Quality - Chemically Testing...

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