Does the Introduction of Pesticides and Fertilizers Alter an Aquatic Ecosystem?
Students conduct an experiment using a small sample from a local water source. They introduce fertilizers and pesticides, separately, and carefully examine the results in their simulated aquatic ecosystem.
3 Views 14 Downloads
Using Environmental Models to Determine the Effect of Acid Rain on an Ecosystem
Demonstrate to your middle school science learners how chalk breaks down in a weak acid. Discuss what affects acidic rain might have on ecosystems. Lab groups then choose one of two questions: "How does acid precipitation affect an...
7th - 8th Science
Earth's Endangered Ecosystems
A vegetable garden is an example of a man-made ecosystem. Here, learners explore the natural ecosystems of the world. In groups, scholars determine the problems their assigned ecosystem faces and, as a class, reach a consensus on the...
7th - 8th Science CCSS: Adaptable