US Environmental Protection Agency
Water Purification by Evaporation and Condensation
This easy-to-perform demonstration shows students how the water cycle, specifically the processes of condensation and evaporation, purifies Earth's water supply. Just mix up some water, dirt, and gravel in a glass bowl, place a cup in...
Marine Institute
Water Pollution
Sixth graders investigate the various types of pollutants found in water and ways to help prevent water pollution. Through a hands-on experiment, students create samples of polluted water by mixing water with vegetable oil, dirt, and...
DiscoverE
Water Pollution Cleanup
How do scientists determine the best method for removing pollutants from our water sources? Environmental scholars experiment with pollution clean-up options to discover which are the most cost-effective, fastest, and most thorough....
Safe Drinking Water Foundation
Demonstration of Water Pollution
In this teacher-led demonstration, your young environmentalists will observe and record how different types of water pollutants look when they are combined. From here, individuals will develop a hypothesis on how the water can be...
Science Matters
Fault Formations
The San Andreas Fault moves about two inches a year, approximately the same rate fingernails grow—crazy! The third lesson in the series allows for hands-on exploration of various fault formations. Through the use of a Popsicle stick,...
Curated OER
A Symphony of Decomposers
Students discover decomposition. In this environmental lesson, students explore different types of decomposers and their role within the ecosystem. Students also discover how waste interferes with the decomposition process.
Curated OER
Snot: NC Summer Tour Lesson 2007
Young scholars study various aspects of mucous. In this mucous lesson, students investigate the purpose of mucous. Young scholars create fake mucous.