This hands-on activity accompanies the video The Great Elephant Census. Students use beans or lentils to model sample and total count methods for studying wildlife population sizes.
In this activity, students collect and analyze data from a hands-on model to discover why even slight variations in beak size can impact a bird’s ability to obtain food and survive.
This activity instructs students how to build their own Winogradsky columns, which provide visual examples of the diverse modes of metabolism in the microbial world.
