In this video adapted from Texas Parks and Wildlife Department, learn about the prairie dog, the importance of its role in its ecosystem, and how it is affected by an ever-growing human population.

This activity is a field exploration where students observe, record and share their findings of plant and animal life on the prairie.

Spreadsheets Across the Curriculum activity/Introductory Ecology course. Students build and manipulate spreadsheets to model and graph populations using the Lotka-Volterra predator-prey equations.

This activity is a simulation that illustrates how population sizes are affected by predator-prey relationships and competitive interactions among prey.

This activity in a case study format explores ice loss from the Greenland ice sheet by way of outlet glaciers that flow into the ocean. Students do basic calculations and learn about data trends, rates of change, uncertainty, and predictions.

In this activity, students investigate soil erosion and how a changing climate could influence erosion rates in agricultural areas. This activity is part of a larger InTeGrate module called Growing Concern.

In this video segment from NatureScene, observe dragonflies and mayflies near Cedar Creek at Congaree Swamp National Park.

In this exercise learners use statistics (T-test using Excel) to analyze an authentic dataset from Lake Mendota in Madison, WI that spans the last 150 years to explore ice on/ice off dates. In addition, students are asked to investigate the IPCC Likelihood Scale and apply it to their statistical results.

This video presents predictions and solutions for range shifts (wildlife corridors) by an iconic species of North American wilderness: the wolverine.

We use eigenvector-eigenvalue analysis to walk through a simple quasispecies model described in Bull, Meyers, and Lachmann, "Quasispecies made simple," PLoS Comp Biol, 1(6):e61 (2005). The dominance of a genotype depends, not merely on its ability to breed quickly (i.e. the rudimentary concept of survival of the fittest), but also on its ability to breed "true."

This fun Web site is part of OLogy, where kids can collect virtual trading cards and create projects with them. The site opens by telling kids that people have learned to change the food we eat. The first comic strip looks at a farmer who works to produce a larger, redder, tastier tomato. The second comic strip tells kids about genetic modification and imagines a scientist putting the flounder's "anti-freeze" gene inside the DNA of a tomato. Food for Thought presents kids with two scenarios about genetically modified food, asking them if they think they're good ideas.

This 10-question quiz covers some of the major impacts to human health caused by climate change.

How does energy flow in and out of our atmosphere? Explore how solar and infrared radiation enters and exits the atmosphere with an interactive model. Control the amounts of carbon dioxide and clouds present in the model and learn how these factors can influence global temperature. Record results using snapshots of the model in the virtual lab notebook where you can annotate your observations.

This video segment from NatureScene describes the characteristics of redwood trees at Redwood National Park.

This video highlights the work of climate scientists in the Amazon who research the relationship between deforestation, construction of new dams, and increased amounts of greenhouse gases being exchanged between the biosphere and the atmosphere.

In this activity, students explore real data about renewable energy potential in their state using a mapping tool developed by NREL (National Renewable Energy Laboratory) to investigate the best locations for wind energy, solar energy, hydropower, geothermal energy, and biomass.

In this activity, students become familiar with the online Renewable Energy Living Lab interface and access its real-world solar energy data to evaluate the potential for solar generation in various U.S. locations.

In this activity, students work through the process of evaluating the feasibility of photovoltaic solar power in 4 different US cities.

In this activity, students play the role of energy consultants to a CEO, assessing and documenting the feasibility, cost, and environmental impact of installing solar power on 4 company facilities with the same design but in different geographical locations.

This video segment explores whether, in principle, renewable energy resources could meet today's global energy needs of about 15.7 terawatts.