AQUATICS BENCHMARK ASSESSMENT Teacher Answer Packet Use the diagram of the water cycle below to answer the following questions. How is freshwater replenished on earth? precipitation What is the term for the underground supply of freshwater? aquifer to the pie chart below on water consumption. Identify 5 ways you can reduce your personal water consumption. Answers will vary a. _Use low-flow showerheads b. _Use low-flush toilets c. _Take shorter showers d. _Only run dishwasher and washing machine when loads are full e. off the faucet while brushing teeth Complete the table below on the salinity of water bodies. Salinity / Description Example of Aquatic Type of Water Environment Contains no salt or very little salt River, , Stream, etc. Fresh Salinity ranges from 0 1 ppt – A mixture of salt and freshwater Estuary Brackish Salinity ranges from 2 17 ppt – Water has a salt concentration over 17 Ocean Salt ppt Average salinity of ocean is 35 ppt Complete the chart for acceptable water quality levels.
AQUATICS BENCHMARK ASSESSMENT Teacher Answer Packet Use the diagram of the water cycle below to answer the following questions. How is freshwater replenished on earth? precipitation What is the term for the underground supply of freshwater? aquifer to the pie chart below on water consumption. Identify 5 ways you can reduce your personal water consumption. Answers will vary a. _Use low-flow showerheads b. _Use low-flush toilets c. _Take shorter showers d. _Only run dishwasher and washing machine when loads are full e. off the faucet while brushing teeth Complete the table below on the salinity of water bodies. Salinity / Type of Water Description Example of Aquatic Environment Fresh Contains no salt or very little salt Salinity ranges from 0 – 1 ppt River, , Stream, etc. Brackish A mixture of salt and freshwater Salinity ranges from 2 – 17 ppt Estuary Salt Water has a salt concentration over 17 ppt Average salinity of ocean is 35 ppt Ocean Complete the chart for acceptable water quality levels.
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