Find out why the pen knife is mightier than the sword this Sunday at a wood-carving demonstration at Fairfax County's Colvin Mill Park. You can learn the art of carving and observe veteran whittlers continue to notch out a totem pole.

History buffs can charge Fort Ward for the first of 10 Sundays to observe Civil War living history activities.

All the following events are free unless otherwise noted.

REACH FOR THE STARS -- Friday and Saturday, 10 to 4, Reston Community Center, 2310 Colts Neck Rd., Reston, Va. "3rd Annual Very Special Arts Festival." Entertainment, art workshops, demonstrations and exhibits for the handicapped and non-handicapped; for all ages. 703/476-4500.

MIDDLE EASTERN FOOD FAIR -- Friday and Saturday, 11 to 8; Sunday, 1 to 5, Saints Peter and Paul Church, 7108 Bradley Blvd., Bethesda. Arabic food and games. 365-0932.

ORCHID GROWING -- Friday through Sunday, noon and 2, U.S. Botanic Garden Conservatory, First and Maryland Avenue SW. "Orchids as Indoor Plants," learn how to grow an orchid by a sunny window. 225-7099.

SQUARE DANCE -- Friday, 8 to 11 p.m., Luther Place Church, 1227 Vermont Ave. NW. From beginners to experts, everyone is welcome. $3. 265-0435.

THREE-DAY RUMMAGE SALE -- Saturday, 10 to 4, Palisades Community Church, 5200 Cathedral Ave. NW (off MacArthur Boulevard). Antiques, glass, china, paintings, rugs, silver benefit sale. 347-1700.

ARTS AND CRAFTS SHOW -- Saturday and Sunday, 10 to 6, Occoquan, Va. More than 200 craftsmen exhibit on the streets of this 19th-century town. 703/491-8512.

ARTS AND CRAFTS FAIR -- Saturday, 10 to 4, Roosevelt Center, Centerway at Southway, Greenbelt, Md. Iron-forging and quilting demonstrations; live bands. 474-7763.

BOOK SALE -- Saturday, 10 to 2, Glenarden Branch Library, 8724 Glenarden Parkway, Glenarden, Md. Hundreds of hardbacks and paperbacks; most under 50 cents. 699-3500.

STRAWBERRY FESTIVAL -- Saturday 10 to 4, Adelphi Friends Meeting, 2303 Metzerott Rd., Adelphi, Md. "24th Annual Strawberry Festival." Strawberries, auction, arts and crafts, baked goods. 445-1114.

STRAWBERRY WINE FESTIVAL -- Saturday 10 to 6; Sunday, noon to 6, "8th Annual Great Strawberry Wine Festival," Berrywine Plantations Winecellars, Glisans Mill Road. (Take I-270 North to exit 109, left on Route 109 to 355 to 75 north 13 miles to Glisans Mill Road; 3.7 miles to winery). Two days of bluegrass music, dancing, crafts, helicopter rides and strawberries. 301/662-8687.

FLYING HIGH -- Saturday, 1:30 to 5, New Carrollton Branch Library, 7414 Riverdale Rd., New Carrollton, Md. "Up, Up and Away," a program featuring films and actual demonstrations of hot air balloons. 459-6900.

DECOY PAINTING -- Sunday, noon to 4, courtyard, Carriage Trade Shop, 322 North Market St., Frederick. A demonstration of one of America's earliest crafts. 301/622- 1411.

ARTS AND CRAFTS FESTIVAL -- Sunday, noon to 5, Glenn Dale Special Center, 6700 Glenn Dale Rd., Glenn Dale, Md. "11th Annual Arts and Crafts Festival," a celebration of culture, arts and seasonal strawberry harvest. 249-9220.

STRAWBERRY FESTIVAL -- Sunday, 1 to 4, Walney Visitor Center, Lawrence Park, Centreville, Va. (Take Beltway Exit 9, Route 66 West, 11 miles to Sully Road, make left; right on Walney Road. Visitor center on left). An old-fashioned family outing with croquet, badminton, barbershop quintets, strawberry desserts and more. 631-0013.

CARVING LESSONS -- Sunday, noon to 4, Colvin Run Mill Park, Leesburg Pike (Route 7 in Fairfax County, five miles west of Tysons Corner). Spend an afternoon learning how to carve small wood animals. Pre-cut blanks are available for a small fee; lessons and use of tools are free. 534-1845 or 560-1447.

WAR REENACTMENT -- Sunday, 1 to 4, Fort Ward Museum and Historic Site, 4301 West Braddock Rd., Alexandria. Spend an afternoon watching camp life, drills and firing demonstrations; see uniforms of the Crimean War. 838-4848.