STEM.edu

Hansol Kang, a freshman at MIT, looks slightly blushed behind plastic goggles. “I’ve made like two, actually three mistakes today,” she confesses. Among Kang’s missteps: overheating a chemical mixture, using a too-small funnel, dropping the funnel to the ground. But Kang was not alone, and several of her classmates, too, had run into trouble: there were spills, broken test tubes, starts and restarts.