Learners study why dams are built and what is affected by them. They build model dams and explain how dams can be a detriment to paddlefish population.

Seventh graders discuss water issues and its affect on salmon population. They recreate a sampling river with fish (cheddar) and scoop them to tag them (which means they exchange them for pretzel fish.) They complete a spreadsheet to...

Students are introduced to the components and importance of the water cycle. They are shown how groundwater moves using a model. Students list 9 places on earth where water is found. They define the terms cycle and water cycle.

Seventh graders use paper bags and crackers to simulate a wildlife sampling of salmon. They record data on spreadsheets and determine a formula to estimate salmon populations.