Bees provide vital benefits to people, including crop pollination and products such as honey and beeswax. But we’re losing bees through colony collapse disorder (CCD). In this lesson, students are put at the cutting edge of research on declining bee populations. To date, CCD has not been concretely attributed to any single cause. Through a variety of clues, students will conclude that CCD results from a combination of factors. Have students play the role of worker bees and the teacher can play queen bee.