Young scholars research phytoplankton and zooplankton. For this food chain lesson, students read This is the Sea That Feeds Us and discuss plankton, food chains, and webs. Young scholars define phytoplankton and compare them to land plants. Students role play as phytoplankton and complete a craft for the plant. Young scholars define zooplankton, view examples, and role play as the plant. Students complete a related worksheet.