Ledyard Public Schools

a. explain the role septic and sewage systems on the quality of surface and ground water sources.

1. Illustrate and discuss drinking water treatment methods.
2. Observe and discuss various wastewater treatment techniques.

1. Conduct a water filtering activity (Bottled biology). (CINQ. 5, 10)
2. Who dirtied the water/Clean Water Is It Drinkable? (CINQ. 1, 3, 4, 5, 6, 7, 8, 9, 10)
3. A-maze-ing Water (pollution, runoff, treatment models) Project Wet
4. Color me a watershed (% of land use, maps …) Project Wet. pg. 223
5. Cleaning up oil spills (PH pg. 135E)

a. explain how human activity may impact water resources in Connecticut such as ponds, rivers and the Long Island Sound ecosystem.

1. Construct a model of the water cycle or “Diary of a Raindrop”, RAFT (CINQ. 10)
2. Project Oceanology/Bluff Point – Students will conduct water quality studies on Long Island Sound and determine the influence that these factors have on the biota. (CINQ. 1, 3, 5, 6, 8, 9)

1. Conduct a science investigation using stream tables, “How does the surface affect the rate of water flow?” (CINQ. 5)
2. Project WET sources of pollution activities.
3. Students will read articles about human activities impacting water resources (i.e. global warming, acid rain, sewage overflow after storms, nitrates and phosphate from runoff, eutrophication, fish kills, etc. determine cause and effect. (CINQ. 2)
4. Get the ground water picture (water movement through different substances.) Project Wet pg. 136
5. The incredible journey (water cycle, journal, combine with diary of a rain drop.)
6. Wet vacation (graphing, design travel brochure.)
7. Students will conduct a real life Environmental Impact Assessment on a proposed condominium development along the banks of the Thames River. Students will collect and record data at Stoddard Park, which is located along the banks of the Thames River. The project will consist of several different components, each aimed at assessing the impact of human activities on various aspects of the watershed.
   1. Collecting data on watershed
      a. Abiotic factors – water quality testing. (Nitrates, phosphates, temperature, salinity, pH)
      b. Biotic factors – terrestrial and aquatic organisms
      c. Erosion / sedimentation / analyze topo maps – slope, impact
      d. Groundwater / septic
   2. Make recommendations (apply concepts using data and persuade public)
      a. Draw and design condominium development (septic, parking lot, drinking water.)
8. Field Study to a water treatment facility such as Pfizer.