Run for Zimbabwe Orphans & Fair, noon to 4 p.m. at St. Joseph School, 1120 Miramonte Ave., Mountain View. Information: zimbabweparaguay.net.
Music for Minors “Imagine” fundraiser, 6-9:30 p.m. at The Tech Museum of Innovation, 201 S. Market St., San Jose. Information: mfm.org/imagine.
Los Altos Hills Earth Day celebration, 1-4 p.m. at Westwind Community Barn, 27210 Altamont Road. Information: losaltoshills.ca.gov.