Only 30 percent of researchers are women, according to the Unesco Institute for Statistics. It’s a percentage that the Sonoma County chapter of Expanding Your Horizons in Science and Mathematics wants to increase, with workshops that encourage girls to study STEM-oriented subjects. It’s next event, which has the same name as the organization, will feature women in the sciences teaching classes on a variety of topics to students in grades 7–8. It will be held on March 28, 9 a.m.–2:15 p.m., at Sonoma State University in Rohnert Park. Registration is due March 25. Sign up and find out more information at eyh-soco.org.