Biology

Students can witness a population explosion right before their eyes as they nurture and experiment with living duckweed plants. Students start with a small number of plants and watch them reproduce vegetatively into a large matted colony, too numerou...

Students receive firsthand experience using the mark/recapture method of counting a population, a technique often used by ecologists and wildlife biologists. First, students capture individuals in their simulated population and “tag” them. Then the o...

The increase in amphibian deformity rates and decline in amphibian populations throughout the world has become an issue of great concern. This hands-on card game simulates a frog population of a local pond under both natural- and human-influenced sit...

Recreate and experience the classic, interrelated life cycles of lynx and hares by performing this entertaining simulation! Students will be captivated as they simulate and tally the ever-changing numbers of lynx and hares in a given area. The activi...

The action in this fast-paced activity may become intense as student “predators” attempt to capture their “prey.” What happens when different organisms, living in the same habitat, are all trying to survive and produce offspring? Will they all surviv...

This simple and fun simulation illustrates the point that natural resources are limited and the consequences of depleting them can be disastrous. This game-like simulation is designed to mimic the real Easter Island story-the catastrophic story of a ...

Produced by Zero Population Growth and Southern Illinois University, this revised edition of the classic 1972 film presents the best-ever graphic simulation of human population growth! As the years roll by on a digital clock, dots appear on a world m...