Jan Anderson is a scientist who studies the natural world. Scientists like Jan look at the world around us and try to figure out why things work the way they do. For example, they may study why some animals are getting sick, how plants grow, or why the Earth is warming up. Jan does experiments to test her theories, and then gathers and records data to write reports about what she has found. Scientists like Jan Anderson help us better understand our planet and how it works, which can help us make better decisions to keep our environment healthy.