In this lesson, students will be able to identify differences in the water quality of a stream. Students will accurately follow directions and complete water testing. Then, collect aquatic insects and identify them using the chart and pictures and come up with an index value. Students will then be able to identify causes of changes and pollution in the water of a stream.

This lesson uses hands-on activities to discuss water filtration. Students will have the opportunity to explore water filtration by filtering water through a variety of materials and using potatoes to grow and test the bacteria levels of the water. With a focus on nanotechnology, this lesson discusses the benefits of embedding silver ions in filters to kill harmful bacteria. At the end of this lesson students will have the opportunity to put their knowledge to the test in a written discussion by designing a solution to a mock water crisis.

In this lesson, students will analyze water samples for contaminants. Students will use the Internet or other sources to identify sources of water contamination and relate contaminants to local sources.

Students explore causes, impacts, and solutions to contaminated runoff. Students will also construct a three-dimensional model of an actual watershed, and use the model to provide information on contaminated runoff to a specific target audience.

The High-Adventure Science Water module has five activities. In this module students will consider the question: will there be enough fresh water? In this guided activity, they will explore the distribution and uses of fresh water on Earth, explore models of porosity and permeability, run experiments with computational models, and hear from a hydrologist working on the same question. By the end of the module, students will be able to explain how humans can preserve supplies of fresh water for the future.

Students investigate the interconnectedness of the ocean and Earth's physical and human systems through videos, discussions, writing, and mapping. They make personal connections to their own lives and are introduced to the concept of Marine Protected Areas (MPAs).

This is an encyclopedia entry for "marsh." A marsh is a wetland, an area of land where water covers ground for long periods of time. Text is appropriate for middle and high grade levels.

This encyclopedia entry is for the term "tide." The regular rise and fall of the ocean?s waters are known as tides. Along coasts, the water slowly rises up over the shore and then slowly falls back again. Text for this entry is appropriate for the middle and high school grade levels.