SENIORS JAZZ CONCERT, a tribute to female blues singers, presented by Harmony of the Sol, bring a dessert, beverages provided, 7-8:30 p.m., East Columbia 50-Plus Center, East Columbia Library, 6000 Cradlerock Way. Free; preregistration required. 410-313-7680.
WOODSTOCK NATURE PROGRAM, for children ages 3-4 accompanied by an adult, a nature walk, story and snack, sponsored by the Howard County Conservancy Little Explorers Program, 9:30-11 a.m., Mount Pleasant, 10520 Old Frederick Rd., Woodstock. Requested donation, $5; preregistration required. 410-465-8877.
LIBRARY WEB SURFING PROGRAM, for adults and children ages 7 and older, "Mouse in the House Family Web Surfing: Science Fair Projects," learn about kid-friendly sites for science projects in a basic Web surfing program, 4 p.m., Central Branch Library, 10375 Little Patuxent Pkwy. at South Entrance Road, Columbia, 410-313-7800; or call to schedule a session at the Elkridge Branch Library, 6540 Washington Blvd., Elkridge, 410-313-5077. Free; preregistration required.
BALTIMORE STORIES PROGRAMS, for infants, "Mother Goose," 10:30 a.m.; stories for ages 1-3, 11:30 a.m., Enoch Pratt Free Central Library, 400 Cathedral St., Baltimore. 410-396-5402.
SWIMMING LESSONS, for ages 6 months and older, six-week sessions, sponsored by the Columbia Association, call for class schedules at the Columbia Swim Center, Columbia Gym and Supreme Sports Club. $48 and $75; preregistration required. 410-715-3000.
MARYLAND GREAT FALLS HIKE, an eight-mile hike over rocks along the Potomac River on the Billy Goat Trail, sponsored by the Sierra Club, Howard County Group, 9 a.m., carpool departures from Broken Land Parkway and Route 32, Park-and-Ride lot, west side, Columbia. Free; preregistration required. 301-854-0299.
CHARITY BINGO, door prizes and more; rides available for seniors; sponsored by the Knights of Columbus; four early-bird games, 7:30 p.m.; regular games, 8 p.m., Knights of Columbus Columbia Council, Wilde Lake Interfaith Center, 10431 Twin Rivers Rd., Columbia. Early-bird game packet, 75 cents; regular game packets, $5 and $10. 410-997-7691.
GOLF CONDITIONING CLASS, learn how the golf swing relates to the body, and how to improve golf performances, includes a golf fitness assessment and an exercise routine, sponsored by the Columbia Association, 10:30 a.m.-1 p.m., Saturday and April 12, Supreme Sports Club, 7080 Deepage Dr., Columbia. 410-381-5355.
LAUREL CHILDREN'S NATURE CLASS, for ages 3-4, an introduction to bees through games, songs and crafts, 10:30-11:30 a.m., Patuxent Research Refuge, National Wildlife Visitor Center, off Powder Mill Road, between Baltimore-Washington Parkway and Route 197, Laurel. Free; preregistration required. 301-497-5887.
BLACK FICTION BOOK CLUB, discussion of "Mama Day," by Gloria Naylor, 1 p.m., East Columbia Branch Library, 6600 Cradlerock Way, Columbia. 410-313-7700.
JUMP ROPE PERFORMANCE, for all ages, watch the Kangaroo Kids precision jump rope team perform to music, 11 a.m., Elkridge Branch Library, 6540 Washington Blvd., Elkridge. Free; preregistration required. 410-313-5085.
NATURE PROGRAM, for ages 5-7, "Making Sense of Nature," a guided walk to explore nature through smell, touch, sight and hearing, 1-2 p.m., Patuxent Research Refuge, National Wildlife Visitor Center, off Powder Mill Road, between Baltimore-Washington Parkway and Route 197, Laurel. Free; preregistration required. 301-497-5887.
WIDOWERS AND WIDOWS SUPPORT GROUP, meets for dinner the first Sunday of each month, sponsored by Widowers and Widows of Howard County, call for dinner time and menu, Harmony Hall Retirement Community, 6336 Cedar Lane, Columbia. Free. 301-490-3157.
BOATING SKILLS AND SEAMANSHIP COURSE, a safety program for experienced and novice boaters, includes a final exam and certificates of completion, sponsored by Flotilla 24 of the U.S. Coast Guard Auxiliary, 7-9 p.m. for six Mondays, American Legion Post 61, Main Street, Laurel. $30; preregistration required. 301-982-9202.
COLUMBIA AEROBICS CLASS, for beginners and advanced exercisers, learn about cardio- and strength-training; bring weights, a floor mat and a step, sponsored by Kings Contrivance Community Association, 7:30-8:30 p.m. for seven Mondays, Amherst House, Kings Contrivance Village Center, 7251 Eden Brook Dr., Columbia. $35 and $39; preregistration required. 410-381-9600.
CONTEMPORARY FICTION GROUP, discussion of "On Green Dolphin Street," by Sebastian Faulks, 7 p.m., Glenwood Branch Library, 2350 Route 97 (Roxbury Mills Road), Glenwood. Free; preregistration required. 410-313-5577.
SENIORS E-MAIL CLASS, learn how to read, send and answer e-mail on the Internet, 7 p.m.; one-on-one tutorials available upon request; East Columbia Branch Library, 6600 Cradlerock Way, Columbia. Free; preregistration required. 410-313-7700.
STEVENSON NATURE STORY TIME, for ages 7 and younger, tales about animals and other nature-related topics, a drop-in program, 2-2:45 p.m., Irvine Nature Center, 8400 Greenspring Ave., Stevenson. Free. 410-484-2413.
SWING DANCE CLASS, a six-week course, sponsored by Long Reach Community Association; intermediates, 6-7 p.m.; beginners, 7-8 p.m.; Stonehouse, Long Reach Village Center, 8775 Cloudleap Ct., Columbia. $63; preregistration required. 410-730-8113.
MOTHER-DAUGHTER BOOK CLUB, discussion of "Rules of the Road," by Joan Bauer, 7-8:30 p.m., Central Branch Library, 10375 Little Patuxent Parkway at South Entrance Road, Columbia. Free; preregistration required. 410-313-7860.
YOUTH GRIEF SUPPORT GROUP, for ages 12-18 who are grieving the death of a loved one, friend or relative, share experiences and learn how others are dealing with similar situations, feelings and adjustments, sponsored by Hospice of Howard County, 6:30-8 p.m., 5537 Twin Knolls Rd., Columbia. Free; preregistration required. 410-730-5072.
BASKETBALL TRIVIA CONTEST, for ages 11 and older, teams will form to complete in a quiz tournament about college basketball and the ACC, prizes awarded, sponsored by the library, 7-8:30 p.m., Glenwood Branch Library, 2350 Route 97 (Roxbury Mills Road), Glenwood. 410-313-5577.
POLYMER CLAY WORKSHOP, for ages 11 and older, learn how to create beads, pendants, picture frames and more, 7-9 p.m., East Columbia Branch Library, 6600 Cradlerock Way, Columbia. Free; preregistration required. 410-313-7700.
ELKRIDGE BOARD GAMES, for ages 11-17, play Jenga, Scrabble, Life, Yahtzee, Catch Phrase, checkers and others, or bring a favorite board game, 7-8:30 p.m. Wednesday and March 19, Elkridge Branch Library, 6540 Washington Blvd. Free. 410-313-5077.
NEWCOMERS CLUB COFFEE, for residents new to Howard County, club offers arts and crafts, a book club, games, trips and more, sponsored by the Newcomers Club of Howard County, 10 a.m., New Hope Lutheran Church, 8575 Guilford Rd., Columbia. Free. 443-535-0291.
COLUMBIA BUTTERFLY PROGRAM, for ages 8 and older, Howard County master gardeners will present "Butterfly Basics," learn how butterflies grow, what they eat and more, 4 p.m., Central Branch Library, 10375 Little Patuxent Parkway at South Entrance Road, Columbia. 410-313-7880.
-- Compiled by Linda James
Items are accepted on a space available basis from public and nonprofit organizations only and must be received at least 14 days before the Thursday publication date. Submit information to Community Events, The Washington Post, 10490 Little Patuxent Pkwy., Suite 650, Columbia, Md. 21044. Include event name, dates, times, exact address, prices and a publishable contact phone number.