Explore more about acid rain. This is an online experiment to observe "The influence of acid rain on plant growth." Find out how acid rain can damage your plants directly and indirectly.

This is an activity that deals with acid rain. "This experiment will illustrate how to measure the approximate pH of chemicals in water using a pH indicator." It is easy to follow the comprehensive set of directions.

Provides an overview of the issue of sediment contamination in the Great Lakes, how the problem is assessed, causes of contamination, and remedial efforts. Includes links to more in-depth information.

Students learn what the forms of mercury are, the sources, how to reduce the releases, and how it affects humans and the environment.

Find out how plants and animals adapt to changes in ecosystems.

How do people get their water reservoirs for drinking water? This site features an in-depth explanation of this question. Come and check it out.

View a poster that illustrates the everyday risks to the U.S. supply of clean drinking water.

After learning simple water-saving tips, students play a game in which they guide "water-efficiency hero Flo" through a maze of pipes, avoiding "water-wasting monsters" and answering questions about water use.

Students can use these LearningCheck item banks to prepare for the following - grade 10 science exams.

Students can use these LearningCheck item banks to prepare for the following - grade 10 Oklahoma math exams.

A collection of fact sheets, brochures, and web pages about environmental issues. Topics include acid rain and air pollution, ecosystems, human health, waste and recycling, conservation, and water-related concepts and issues.

Describes a process by which waste lead can be reclaimed from materials such as batteries.

Project to supply environmental education, training, and services was started in part by the US Environmental Protection Agency.

How does the government raise money to fund government agencies like the EPA? Through taxes. This lesson looks at the different taxes that are paid by US citizens and how the money is used for things such as cleaning up the environment.

Explore the four neighborhoods of Recycle City to learn all the ways people there are recycling, reducing, and reusing materials. Take a look also at Dumptown, which is how Recycle City used to look, and see all the waste reduction...

This site details the signing and revision of the Great Lakes Water Quality Agreement by the United States and Canada. Includes a copy of the revised agreement of 1978.

The wealth of information and tools available on this site will assist students and teachers to develop and promote active awareness of the impact human beings have on the environment. Resources are provided to guide them in how to lead...

Downloadable booklets with basic information about the U.S. water supply, e.g., where our drinking water comes from.

Information about the quality of water in the Great Lakes and the agreement signed by the United States and Canada in response to problems with the quality of the water.

Explains what hypoxia is, its causes, the sources, why it is important to reduce it, and where it occurs around the world. Includes a diagram showing how hypoxia develops in a water body and links to lots of additional resources.

Where does your drinking water come from? This resource features a clear and concise explanation for this question. This resource will be beneficial to students and teachers.

An illustrated diagram of the water cycle that students can use for study.

This resource presents a simple set of instructions for building a model of the water cycle in a lidded jar.

In this illustratd diagram of the water treatment process, click on each step to learn more information.