Students explore the differences between lentic and lotic ecosystems. In this ecology lesson students study the water systems in Pennsylvania.

Pupils learn about watershed, as well as the different forms and uses of water. In this water forms lesson, students brainstorm water sources and uses. Pupils read the book Water Dance and discuss water examples. Students complete a...

In this learning about watersheds worksheet, students answer 15 questions using links to web resources about water use in their community.  This page includes numerous links to helpful websites.

In this fresh water worksheet, students click on the links in the questions about fresh water to find the answers and then come back and answer the questions. Students answer 9 questions total.

In this water worksheet, students read mini articles and solve math word problems having to do with water. Students complete 16 word problems.

Pupils assemble a classroom river model as an example of a lotic system. They control and measure biotic and abiotic information for the in-class system and compare data with a lotic system in a natural environment.

Students create and conduct experiments on a "classroom river habitat." They manipulate the biotic and abiotic factors so that they are able to compare an artificially prepared river model to a naturally occurring lotic ecosystem.

Learn about the biotic and abiotic factors of lakes and ponds as well as learning how lakes form through reading and video clips.

Discover the aspects of aquatic ecosystems.