Do you think chromatography paper suffers from separation anxiety? Young chemists make soap, slime, silly putty, and experiment with chromatography in this lesson plan. The material includes clear instructions for each experiment along...

Ninth graders research, analyze, and orally defend an issue related to the use of geologic resources. They defend their position in written form by composing a letter to an appropriate source.

Students examine the EPA's approach to integrated solid waste management. They read about source reduction, recycling, composting, waste-to-energy incineration, and land filling, and create symbols for each of the aspects of solid waste...