This lab is designed to meet the Ecosystems: Interactions, Energy, and Dynamics NGSS HS-LS2-2 standard. In the lab, students investigate whether sampling is an accurate way to determine the size of an animal population. Students will use paper bags, green beans, and light colored beans to simulate field sampling of a Kodiak bear population. Students will complete several trials and then analyze the effectiveness of their sampling. Lab includes a lab introduction and lab analysis rubric, data rubric, and conclusion rubric.