TOM SAWYER -- Friday at 8 p.m. and Saturday at 10 a.m. A new musical adaptation of Mark Twain's story about a boy's journey down the Mississippi River. George Mason University Center for the Arts, 4400 University Dr., Fairfax. $20,

ages 12 and younger $10. 703-993-2787.

ARTS SAFARI -- Saturday, 10 a.m.-4 p.m. Hands-on

activities including mural making, clay molding, knitting, weaving and plaster body casting. Torpedo Factory Art Center, Target Gallery, 105 N. Union St., Alexandria. Free. 703-838-4565.

GEOLOGY ROCKS -- Saturday, 10 a.m.-2 p.m. Learn about rocks and minerals with

Billy B., the "Natural Science Song and Dance Man."

With arts and crafts workshops. National Museum of Natural History, 10th Street and Constitution Avenue NW. Free. 202-357-2700.

HONEYBEE HOEDOWN -- Saturday, 10 a.m.-2 p.m. Discovery Creek unveils its new Power Pollinators exhibit with a fall festival that includes a brunch, square dancing, horse-drawn hayrides, and arts and crafts. Discovery Creek Children's Center, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. $50, children $35. 301-320-7757.


Saturday at 11:30 a.m. A Spanish adaptation of the Brothers Grimm fairy tale, performed by Teatro de la

Luna. Instituto de Mexico,

2029 16th St. NW. $7,

ages 12 and younger free. 202-882-6227.

BUNNICULA -- Through Nov. 7. A musical comedy about a vampire bunny, based on the book by Deborah and James Howe. Imagination Stage,

Lerner Theatre, 4908 Auburn Ave., Bethesda. $10-$15. 301-280-1660.