GLENARDEN STORY TIME, for ages 2-5. 10:30 a.m., Glenarden Library, 8724 Glenarden Pkwy., Glenarden. Free; limited to the first 35 people. 301-772-5477.
HILLCREST HEIGHTS MOVIE, "Big Momma's House." 4-6 p.m., Hillcrest Heights Library, 2398 Iverson St., Hillcrest Heights. Free. 301-630-4900.
FARMERS MARKET, fresh fruits and vegetables in an open-air market, sponsored by the Maryland-National Capital Park and Planning Commission. 7 a.m.-noon, Ellen Linson Swimming Pool parking lot, 5211 Paint Branch Pkwy., College Park. Free. 301-277-3717.
AGRICULTURAL FIELD DAY, tours of a 175-cow milking dairy; also, interactive activities, games and demonstrations, tractors, combines and plows to climb on, a petting zoo and hayrides. Refreshments for sale. Sponsored by the Beltsville Agricultural Research Center. 10 a.m.-4:30 p.m., at the center, 10300 Baltimore Ave., Beltsville. Free. 301-504-9595.
NATIONAL TRAILS DAY EVENT, park visitors are invited to walk along a fitness trail, help remove invasive plants and replace missing or damaged mile markers. Prizes and T-shirts; bring gloves. 10 a.m., Sweetgum Picnic Area, Greenbelt National Park, 6565 Greenbelt Rd., Greenbelt. Free. 301-344-3944 or www.nps.gov/gree/.
ENVIRONMENTAL EDUCATION WORKSHOP, for teachers, "Project Wild," about indoor and outdoor interactive activities to help students learn about wildlife. 10 a.m.-4:30 p.m., Patuxent Research Refuge, National Wildlife Visitor Center, Powder Mill Road, between the Baltimore-Washington Parkway and Route 197, Laurel. $10; registration required. 301-497-5898.
"COLLEGE PARK THROUGH OUR EYES," for ages 10 and older, three workshops to create a giant scrapbook using paint, fabric and personal memorabilia to depict life in College Park. Sponsored by College Park Arts Exchange. 10 a.m.-4 p.m. Saturday, June 11 and 18, Old Parish House, 4711 Knox Rd., College Park. Free; registration required. Call 301-927-3013 or send e-mail to email@example.com.
COLLEGE PARK HERB GARDEN TALK, author Susan Belsinger discusses how to cultivate herbs in a garden or container, and how and when to harvest them. Also, tips on cooking with fresh herbs. Sponsored by College Park Arts Exchange. 1 p.m., Old Parish House, 4711 Knox Rd., College Park. Free; reservations recommended. 301-927-3013.
PUBLIC SPEAKING CLASS, for ages 18 and older. 7-8:15 p.m., Potomac Landing Community Center, 12500 Fort Washington Rd., Fort Washington. Free; registration required. 301-292-9191.
CROOM BIKE RIDE, for all ages, June 6 is the advance registration deadline, online or by mail, for a 24-, 46- or 62-mile cycling event to be held June 11 along the Patuxent River. There will be refreshments at rest stops and a picnic at the end of the ride. Sponsored by the Oxon Hill Bike and Trail Club. Event-day registration, 7-9 a.m. June 11, Merkel Wildlife Sanctuary Visitor's Center, 11704 Fenno Rd., Croom. $15; in advance, $12. Registration required. 301-567-0089 or www.ohbike.org.
HOME-SCHOOL ECOLOGY WORKSHOP, for home-schooled students ages 8-12, an interactive program, "Romp Through the Swamp," about the importance of wetlands. Wear appropriate clothing and shoes. Sponsored by Patuxent Research Refuge. 1-3 p.m., North Tract of the refuge, Route 198, between the Baltimore-Washington Parkway and Route 32, Laurel. Free; registration required. 301-497-5887.
GLENARDEN SLAVERY-HISTORY TALK, historian C.R. Gibbs discusses "Great Slave Rebellions." 6 p.m., Glenarden Library, 8724 Glenarden Pkwy., Glenarden. Free. 301-772-5477.
WESTERN PLAY, for all ages, "Happy Trails: A Tale of the Old West," an original play presented by the Bowie Library Troupers. 2 p.m. Tuesday, 7 p.m. Wednesday, 2 p.m. and 7 p.m. June 9. Bowie Library, 15210 Annapolis Rd., Bowie. Free; limited to the first 200 people at each performance. 301-262-7000.
COMPUTER CLASSES FOR SENIORS, for those 60 and older, classes in the components of a computer system, computer games and maintenance. 9:30 a.m.-noon Tuesdays and Thursdays, through June 24, Prince George's Sports & Learning Complex, 8001 Sheriff Rd., Landover. $40; nonresidents of Prince George's and Montgomery counties, $48. Registration required. 301-583-2430 or www.pgsportsandlearn.com.
ANIMALS AND THEIR HABITATS, for ages 2 and older. 10-11 a.m., Clearwater Nature Center, 11000 Thrift Rd., Clinton. $1; nonresidents of Prince George's and Montgomery counties, $2; registration required. 301-297-4575.
BOOK DISCUSSION, J. California Cooper's "Some People, Some Other Place." 7 p.m., Hillcrest Heights Library, 2398 Iverson St., Temple Hills. Free. 301-630-4900.
END-OF-LIFE CHOICES, registered nurse Elizabeth Morton discusses "Helping Patients and Families With End-of-Life Decisions." 7-8 p.m., Fort Washington Hospital, 11711 Livingston Rd., Fort Washington. Free. 301-686-9010.
SENIOR CENTER FASHION SHOW, seniors will model their favorite outfits. 10 a.m., Langley Park Senior Center, 1500 Merrimac Dr., Langley Park. Free. 301-408-4343.
MEN'S HEALTH TALK, for ages 30 and older, family practice physician Neal A. Meade and urologist Frank Nezu discuss "Tune-Up for Life: An Evening of Men's Health Awareness," about high cholesterol, diabetes, erectile dysfunction, prostate problems, heart disease and high blood pressure. A question-and-answer session will follow. 6:30-8 p.m., Laurel Regional Hospital, J. R. Jones conference room, 7300 Van Dusen Rd., Laurel. Free; registration required. 301-497-8736.
MYSTERY BOOK DISCUSSION, Alexander McCall Smith's "The No. 1 Ladies' Detective Agency," a novel about the first female detective in Botswana, Africa. 7:15 p.m., Bowie Library, 15210 Annapolis Rd., Bowie. Free. 301-262-7000.
SIGN LANGUAGE CLASSES, for beginners 16 and older, deaf culture and the hearing-impaired, basic sign movements and etiquette. 7:30-9:30 p.m. Thursdays, through June 30, South Bowie Community Center, 1717 Pittsfield Lane, Bowie. $60; nonresidents of Prince George's and Montgomery counties, $72. Registration required. 301-249-1622.
-- Compiled by LISA MARTIN
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