Investigative Case - "The Sky is Falling" part of Examples
Students will generate maps of ozone concentrations, graph air quality indices, and propose solutions to problems with the ozone and air quality, specifically smog.

Investigative Case - "Home, Home on the River" part of Examples
Students will examine the complex issues that result from human use of ecologically sensitive areas. The students will investigate these issues from the point of view of their major/career path.

The Wingra Marsh: A Purple Population Problem part of Examples
Students author a presentation to the Grounds Management Committee of their school giving their recommendation for the control of the invasive species purple loosestrife (Lythrum salicaria) on campus.

Investigative Case - "Swampeast Missouri" part of Examples
Students will explore wetland hydrology and biology and decide whether or not to restore a wetland or retain dams and drainage systems.

Investigative Case - "Holy Starbucks Batman!" part of Examples
Students will investigate caffeine as a potential new pollutant in a northwest river system. Effects of caffeine on invertebrates and salmon fry will be explored through field work and lab work.

Investigative Case - "Goodbye Honey Buckets" part of Examples
Students will investigate arctic geology and hydrology as well as tundra ecology as they consider options for sewage treatment. Public safety, environmental impact, and issues of construction and engineering will be explored.

Investigative Case: The Nancy Creek Challenge part of Examples
Students examine a case study of fish kill in Nancy Creek and identify the environmental conditions that favor life in a fresh water ecosystem.

Investigating Regional Hydrogeology of the Mid-Atlantic Coastal Plain part of Examples
Exercise to recognize regional groundwater flow in the Cretaceous aquifers of the North Carolina and Virginia Coastal Plain and their changes through time. Includes interpreting flow before and after human withdrawals, so students can discover impacts on the groundwater system, especially for depletion and saltwater intrusion.

Investigative Case - Los Angeles and the Future of Mono Lake part of Examples
The Los Angeles and the Future of Mono Lake WebQuest leads students in a guided exploration of Mono Lake's extreme environment and asks them to consider the preservation of this environment in relation to the needs of humans.

Investigative Case - "Rio Grande Wildlife Refuge" part of Examples
As professional ecologists working for the fish and wildlife service, students must develop a plan to manage a new wildlife refuge along the Rio Grande River. The fish and wildlife service plans to connect forest islands along the river, which will become not only a new refuge but also a "wildlife corridor."