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Energy Balance Climate Model: Stella Mac and PC part of Examples
Students explore a Global Energy Balance Climate Model Using Stella II. Response of surface temperature to variations in solar input, atmospheric and surface albedo, atmospheric water vapor and carbon dioxide, volcanic eruptions, and mixed layer ocean depth. Climate feedbacks such as water vapor or ice-albedo can be turned on or off.

Subject: Geoscience:Atmospheric Science:Climatology :Global energy balance, Environmental Science:Global Change and Climate:Climate Change:Global change modeling, Geoscience:Atmospheric Science:Climate Change:Global change modeling, Environmental Science:Global Change and Climate:Climate Change

Waves Through Earth: Interactive Online Mac and PC part of Examples
Students vary the seismic P and S wave velocity through each of four concentric regions of Earth and match "data" for travel times vs. angular distance around Earth's surface from the source to detector.

Subject: Geoscience:Geology:Geophysics, Structural Geology:Geophysics and Structural Geology, Physics:Oscillations & Waves:Wave Motion

Sea Floor Spreading I part of Examples
In this introductory Excel tutorial (Activity I) students use Excel to explore the geodynamics model equation for ocean depth around a sea-floor spreading center. For students with no prior Excel experience.

Subject: Geoscience:Geology, Oceanography

Sea Floor Spreading II part of Examples
Students import ocean bathymetry data from text files, they then use Excel to graph these observations along with model prediction to assess the model's ability to simulated the observed topographic features of the North Atlantic.

Subject: Geoscience:Geology, Oceanography

Human Demographics part of Examples
In this biology simulation students explore factors that change human population growth including age at which women begin to bear children, fertility rate and death rate.

Subject: Environmental Science:Human Population:Developing/Developed Countries, Biology, Environmental Science:Human Population, Sociology, Environmental Science, Education

Genetic Drift part of Examples
In this biology simulation, students use a mathematical simulation of genetic drift to answer questions about the factors that influence this evolutionary process. Students run a series of simulations varying allele frequency and population size and then analyze their data and propose a model to explain their results.

Subject: Biology:Evolution:Patterns, Biology:Molecular Biology, Evolution:Processes

Medicine in the Body part of Pedagogy in Action:Library:Teaching with Spreadsheets:Examples
In this activity, we will explore how the dosage and frequency of a medicine taken affect the amount of medicine present in the blood.

Subject: Mathematics

Fishing Game: Stella PC and Mac part of Examples
As manager in the fish and wildlife service you are charged with making policy regarding the management of a regional fishery.

Subject: Environmental Science:Oceans and Coastal Resources:Fisheries, Biology, Environmental Science:Policy, Sustainability, Geoscience:Oceanography:Marine Resources

Salmon Smolt: Stella PC and Mac part of Examples
The Stella Smolts Migration Model focuses on the spring migration of hatchery smolts to the ocean. It may be used to test the relative merits of barging fish or drawing down the reservoirs to help the smolts reach the ocean.

Subject: Geoscience:Oceanography:Marine Resources, Environmental Science:Oceans and Coastal Resources:Fisheries, Biology

Sun Path: Interactive On-line Mac or PC part of Examples
Students use SunPath in the yearly mode to investigate seasonal changes in sunrise, sunset, length of day and sun altitude at their own latitude. JAVA activity for Mac or PC.

Subject: Physics:Astronomy:The Sun, Geoscience:Lunar and Planetary Science, Atmospheric Science:Climatology :Orbital patterns, Geoscience:Atmospheric Science:Meteorology:Seasonal patterns, Solar and terrestrial radiation