The Jewish Federation's annual Purim Carnival, "Purim Palooza," will be held from 1 p.m. to 4 p.m. Sunday, March 4, at Reservoir High School, 11550 Scaggsville Road in Fulton. Adults ages 18 to 55 can get tested to determine whether they qualify for the National Bone Marrow Registry. Volunteer opportunities are also available at the carnival. The event includes entertainment by disc jockey Doug Sandler, games, crafts, a photo booth and airbrush hats and shirts. Admission is $10 per family or $5 per person. Vendor space is $45 for individual nonprofit tables; $75 for two. For-profit tables are $75; $125 for two. Event proceeds go to scholarships, grants and needy Jewish families. Information: 410-730-4976 or go to jewishhowardcounty.org.