Environmental Hazards

Octopodes existed for hundreds of thousands of years before humans, yet our eyes share many similarities. Scholars analyze the evidence to determine if the evolution of eyes best fits a homology or analogy model. They discuss the issue...

A rich collection of highly engaging learning modules on topics related to the natural environment. Covers four main areas - plate tectonics, forms and processes, weather and climate, and rainforest and desert. Within each of these,...

A college course featuring instructor's notes and case studies about the relationship between exposure to environmental chemicals and human diseases.

Students analyze hurricanes. In hurricanes lesson, students use the Internet and GIS to analyze hurricanes. Students view the National Atlas of Maps to discuss the direction hurricanes move. Students study the wind and pressure fields to...

Gamma radiation, which is harmful, is useful in treating cancers. In the second lesson in a series of four, young scientists take surveys and calculate their yearly exposure to ionizing radiation. Then they read about how harmful their...

Students examine the relationship between hazardous substances and hazardous waste. They identify toxic chemicals and how they are disposed of. They work together to answer questions about how they are improperly used.

Students work together to research hazardous waste in the news. They discover how large the hazardous waste issue is. They complete an experiment and discuss how the issues affect their community.

Students identify activities that produce hazardous waste. They examine how contaminants are spread in air and water. They work together to create a model to show how the contaminants move through water.

This video segment adapted from the independent film 'Blue Vinyl' examines the dangers associated with the building material known as polyvinyl chloride (PVC). The film's narrator has a rare form of cervical cancer traced to her exposure...

Students examine the health effects of hazardous waste on people. They work together to complete an experiment in which worms are exposed to chemicals. They discuss the results of the test.