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Urban Models: Burgess/Hoyt
Compare the core North American urban models. Toggle between the Burgess Concentric Zone and Hoyt Sector models to understand socio-economic spatial layout.
Migration Push/Pull Factors
Visualize the forces of global migration. Set economic, political, and environmental push/pull factors, and watch how intervening obstacles and opportunities alter the migration stream.
Biomagnification Simulator
Introduce a trace amount of a persistent toxin like DDT into an aquatic ecosystem and watch as the concentration multiplies exponentially up the food chain to the apex predator.
Plate Tectonic Boundaries
Examine tectonic plate interactions. Select Divergent, Convergent, or Transform boundaries to visualize mantle convection driving lithospheric drift.
Soil Texture Triangle
Determine soil classification using the USDA Soil Texture Triangle. Adjust Sand, Silt, and Clay percentages to find the precise intersection point.
Drinking Water Treatment
Step through the municipal drinking water purification process. Observe coagulation, flocculation, sedimentation, filtration, and disinfection.
Wastewater Treatment
Examine the physical, biological, and chemical stages of sewage treatment. Understand the role of aeration and activated sludge in reducing biological oxygen demand (BOD).
Civil Rights Movement – AP US History
Interactive visualization for Civil Rights Movement – AP US History in AP US HISTORY.
Civil War Battles – AP US History
Interactive visualization for Civil War Battles – AP US History in AP US HISTORY.
Cold War Timeline – AP US History
Interactive visualization for Cold War Timeline – AP US History in AP US HISTORY.
Great Depression Indicators – AP US History
Interactive visualization for Great Depression Indicators – AP US History in AP US HISTORY.
Immigration Waves – AP US History
Interactive visualization for Immigration Waves – AP US History in AP US HISTORY.