Meet Dr. Cara Santelli, a former geologist at the National Museum of Natural History. She studies the relationship between minerals and microbes, such as bacteria and fungi. Did you know that microbes are a solution to pollution? Cara works to better understand how microbes can help clean up metal pollutants from old coal mines. Take a journey from Pennsylvania coal mines to an X-ray diffraction laboratory. See how microbes are little machines for mineral transformations. Get to know the microscopic organisms that are essential to the health of our natural environment.
This program originally aired March 12, 2015, as part of the Smithsonian Science How webcast series, which is designed to bring natural history science and research to upper-elementary and middle-school students.