In this ecosystem worksheet, students determine the affect on an ecosystem if different organisms are altered or removed. Students complete a graphic organizer.

In this student exploration-pond ecosystem worksheet, students use the Pond Ecosystem Gizmo to measure oxygen concentrations and temperature and record the data on charts.

In this river ecosystem worksheet, students complete a graphic organizer by writing in what the various organisms lists contribute and benefit in this river ecosystem.

In this ecology community status activity, learners research their state's ecosystem, make a chart of the biodiversity, analyze the chart and identify issues with wetland species.  This page has several links to helpful web resources.

The circle of life is all around us, from the black bears in the nearby mountains to the pile of dead leaves in the backyard. Encourage young scientists to take a critical look at the world around them with a set of lessons...