HYATTSVILLE BOOK TALK, Kenji Jasper discusses "Seeking Salamanca Mitchell," his novel about an 18-year-old African American with two loves, a beautiful woman and his piano. 6:30 p.m., Karibu Books, 3500 East West Hwy., Hyattsville. Free. 301-559-1140.
HYATTSVILLE REPTILE SHOW, for ages 6-12, representatives from Reptile World introduce live, large and gentle reptiles. 7 p.m., Hyattsville Library, 6530 Adelphi Rd. Free. 301-985-4690.
COLLEGE PARK NEEDLE ARTS, an informal weekly gathering to work on quilting, knitting, embroidery and counted cross-stitch, sponsored by the College Park Needle Arts Society. 9:30-11:30 am, Old Parish House, 4711 Knox Rd. Free. 301-277-9630.
HYATTSVILLE POETRY EVENT, poet Vickie Oliver-Lawson reads from her "Vocal Moments." 6:30 p.m., Karibu Books, 3500 East West Hwy., Hyattsville. Free. 301-559-1140.
AVIATION MUSEUM OPEN HOUSE, visitor are invited to see the progress in the restoration of a 1940 Aeronca Chief. Noon-4 p.m., College Park Aviation Museum, 1985 Cpl. Frank Scott Dr. Museum admission: $4; seniors, $3; ages 2-18, $2; ages 1 and younger, free. 301-864-6029.
UPPER MARLBORO BOAT TOUR, an educational river-ecology ride on board the Otter. 2-3 p.m. Saturday and Sunday, Patuxent River Park 16000 Croom Airport Rd., Upper Marlboro. Free; registration required. 301-627-6074.
LAUREL SPIDER TALK, for ages 3-4, park rangers spotlight spiders through stories, songs and interactivity, with assistance from live specimens. 10:30-11:30 a.m. and 1-2 p.m. National Wildlife Visitor Center, Powder Mill Road, between Baltimore-Washington Parkway and Route 197, Laurel. Free; registration required. 301-497-5887.
TEEN DRIVING CLINIC, for ages 15-20, a hands-on workshop providing instruction on situational awareness, target fixation and skid control. Professional drivers will simulate real-life emergencies. 1:30-5 p.m., FedEx Field, 1600 FedEx Way, Landover. Free; registration required. 800-956-4269 or www.bmwusa.com.
MAGIC SHOW, for ages 6-12, Michael Chamberlin performs sleight of hand and other feats. 2 p.m., Accokeek Library, 15773 Livingston Rd., 301-283-2521; 7:30 p.m., Largo-Kettering Library, 9601 Capital Lane, Largo. 301-336-4044. Free.
HILLCREST HEIGHTS LIBRARY MEETING, Friends of the Library discuss fundraising, volunteering and special projects. 10:30 a.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
FORT WASHINGTON SCRABBLE GROUP, for players of all experience levels. 6:45 p.m. Mondays, Sipp'ss Cafe, 10707 Indian Head Hwy., Fort Washington. Free. 301-868-6360.
HILLCREST HEIGHTS CHESS CLUB, for all ages and skill levels, with instructor Paul Yates. 7 p.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
ALL ABOUT REPTILES, for ages 5-7, a park ranger discusses scaly and slimy reptiles and amphibians in an interactive program that includes stories and songs. 2-3 p.m., National Wildlife Visitor Center, Powder Mill Road, between the Baltimore-Washington Parkway and Route 197, Laurel. Free; registration required. 301-497-5887.
LARGO CHESS CLASS, for all ages, with instructor Guy Charity. Beginner level, 7 p.m.; advanced-beginner level, 7:45 p.m. Largo-Kettering Library, 9601 Capital Lane, Largo. Free. 301-336-4044.
UNDERWATER PHOTOGRAPHY WORKSHOP, open to all ages, no experience or equipment required. University of Maryland photography instructor Barbara Tyroler guides participants in the creation of underwater photographic portraits. Offered in two sessions: 9-11 a.m. Aug. 15, and 7-8 p.m. Sept. 1., Greenbelt Aquatic and Fitness Center, 101 Centerway, Greenbelt. $40 for each pair of participants, one must be 12 or older, includes single-use cameras, film processing and pool admission. 301-397-2208. Registration required by Aug. 10.
HYATTSVILLE MAGIC SCIENCE, a demonstration of the magic of chemistry through things that fizz, foam and flash, presented by Maryland Science Center staff members. 2 p.m., Hyattsville Library, 6530 Adelphi Rd. Free. 301-985-4690.
FAIRMOUNT HEIGHTS CHESS CLUB, for all ages, with instructor Ted Fagan. 5 p.m., Fairmount Heights Library, 5904 Kolb St., Fairmount Heights. Free. 301-883-2650.
ADOPTION INFORMATION, representatives from Adoptions Together discuss the process for adopting African American children ages 8 and older. 7-8:30 p.m., Surratts-Clinton Library, 9400 Piscataway Rd., Clinton. Free. 301-868-9200.
AVIATION MUSEUM PETER PAN CLUB, for ages 3-5 accompanied by an adult, flying stories, pedal planes, crafts and games. 10:30 a.m.-noon the second and fourth Thursdays of each month, College Park Aviation Museum, 1985 Cpl. Frank Scott Dr., College Park. Museum admission: $4; seniors, $3; ages 2-18, $2; ages 1 and younger, free. 301-864-6029.
HYATTSVILLE CHESS CLUB, for all ages, with instructor Ted Fagan. 7 p.m., Hyattsville Library, 6530 Adelphi Rd., Hyattsville. Free. 301-985-4690.
-- Compiled by LISA MARTIN
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