A group of students from Girls Excelling in Math and Science (GEMS) build small boats out of aluminum foil which will be used to demonstrate how the Panama canal locks system works at an event at the National Building Museum. (Astrid Riecken/For The Washington Post)

GEMS clubs. If you think it might be fun to have a Girls Excelling at Math and Science club at your school, have your parents or teachers visit www.gemsclub.org. There’s an online tool kit on how to start a club and many links to Web sites and projects for kids.

Girl power. The Johns Hopkins University Applied Physics Laboratory hosts a hands-on science and technology event for students in middle and high school. The event, attended last year by 1,000 people, will include demonstrations about engineering, computer science, geology (the study of rocks), aerospace and information technology. Many women who work in science, math and technology will discuss their careers.
March 17 from 2 to 5 p.m. APL Kossiakoff Center, 11100 Johns Hopkins Rd., Laurel. Have your parents call 443-778-7836 or e-mail aplstem@jhuapl.edu for information.

READ: Girls excel in math and science while having fun.