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Performances

These events for children and families are free unless a fee is noted.

UNIVERSOUL CIRCUS -- Friday at 10:30 and 7:30: Saturday at noon, 4:30 and 8; Sunday at 1, 4 and 7. $10 to $29 plus service charges. Security Mall, 6901 Security Blvd., Baltimore. 202-397-7328 or 800-316-7439.

"LITTLE RED RIDING HOOD & the 3 Little Pigs," through July 17. Friday at 10 and 11:30, Saturday-Sunday at 11:30 and 1, Wednesday-Thursday at 10 and 11:30. $7. Reservations recommended. The Puppet Co. Playhouse, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. 301-320-6668.

"LESSONS FROM THE ANIMAL Peoples," storytelling by Dovie Thompson, Friday at 10 and 11:30. $5. Reservations recommended. By Discovery Theatre in the Ripley Center, 1100 Jefferson Dr. SW. 202-357-1500 or 202-357-3030.

KINDERMAN -- songs and stories, Friday at 6. River Hill Village Center, 6030 Daybreak Circle, Columbia. 443-367-0110.

BOB BROWN PUPPETS -- Saturday at 10. Burke Lake Park, 7315 Ox Rd., Fairfax Station. 703-323-6601 or 703-324-7469.

FAIRFAX SYMPHONY WOODWIND Quintet -- Saturday at 10. Ellanor C. Lawrence Park, 5040 Walney Rd., Centreville. 703-631-0013 or 703-324-7469.

FAIRFAX SYMPHONY STRING Quartet -- Saturday at 10. Lake Fairfax Park, 1400 Lake Fairfax Dr., Reston. 703-471-5415 or 703-324-7469.

PAUL HADFIELD AS "Funny Guy," Saturday at 10. Newton W. Edwards Amphitheater, Mason District Park, 6621 Columbia Pike, Annandale. 703-941-1730 or 703-324-7469.

"ALEXANDER AND THE TERRIBLE, Horrible No Good, Very Bad Day," through July 17. Saturday and Sunday at 1:30 and 3:30. $7. Adventure Theatre, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. 301-320-5331.

"CLARA BARTON, RED CROSS Angel" -- Saturday at 2, Mary Ann Jung portrays the Civil War nurse, followed by an open house from 3 to 5. Clara Barton National Historic Site, 5801 Oxford Rd., Glen Echo. 301-492-6245.

FLUMPA & FRIENDS -- music and movement by a giant rain forest tree frog, Tuesday at 7. Cabin John Regional Park, 7400 Tuckerman Lane, Rockville. 240-777-6821.

BLUE SKY PUPPET THEATER -- Wednesday at noon. Franklin Square , 14th and I NW. 202-661-7569.

KINDERMAN -- songs and stories, Wednesday at 6. Oakland Mills Village Center, 5865 Robert Oliver Pl., Columbia. 443-367-0110.

DINOROCK -- Thursday at 7. Strathmore, 5301 Tuckerman Lane, North Bethesda. 301-581-5100.

Special Events

FAMILY FUN DAY -- Saturday 11 to 3, celebrating the sanctuary's 20th anniversary. Magic show, crafts, hay rides. Jug Bay Wetlands Sanctuary, 1361 Wrighton Rd., Lothian. 410-741-9330.

MODEL TRAIN SHOW -- Sunday 1 to 4, by the NTRAK model train club. $2, ages 4 to 10 $1. Fairfax Station Railroad Museum, 11200 Fairfax Station Rd., Fairfax Station. 703-425-9225.

Nature

NATIONAL ZOO -- Grounds open daily 6 a.m. to 8 p.m.; most animal buildings and Amazonia open 10 to 6 (exceptions are posted). Seal and sea lion training at 11:30, elephant care sessions at 11 most days. 3001 Connecticut Ave. NW. 202-633-4800.

NATIONAL AQUARIUM -- More than 1,000 specimens of aquatic life, including an alligator exhibit. Open daily 9 to 5 (last admission 4:30). Adults $5, seniors $4, ages 2 to 10 $2, younger free. Department of Commerce Building, 14th and Constitution NW. 202-482-2825.

BALTIMORE AQUARIUM -- The National Aquarium in Baltimore features a marine mammal pavilion, an Atlantic coral reef exhibit and a South American rain forest. Timed-entry tickets required. Open Friday 9 to 8, Saturday-Thursday 9 to 5. Admission $17.50; seniors $14.50; ages 3 to 11 $9.50 (under 3 free). Pier 3, 501 E. Pratt St., Baltimore. For information, 410-576-3800; for advance tickets, Ticketmaster, 202-397-7328 or 410-481-7328 (service charges added).

NATIONAL WILDLIFE VISITOR Center -- Interior Department science and environmental education center offers interactive exhibits and films. Open daily 10 to 5:30. Patuxent Research Refuge, 10901 Scarlet Tanager Loop, Laurel. 301-497-5760.

ROCK CREEK NATURE CENTER -- Planetarium shows: "The Night Sky," Saturday and Sunday at 1 for ages 4 and up; "Exploring the Universe," Saturday and Sunday at 4 for ages 7 and up; planetarium show for younger children, Wednesday at 4 for ages 2 to 10. Free planetarium tickets distributed 30 minutes before each show. 5200 Glover Rd. NW. 202-895-6070.

Places to Visit

MARYLAND SCIENCE CENTER -- Exhibits: "Titanic: The Artifact Exhibition," through Sept. 5; "Dino Digs," about dinosaurs native to Maryland; "Chesapeake Bay"; "Outer Space Place." Hands-on exhibits and demonstrations of scientific principles. Imax films screened hourly. Planetarium show, hourly. Admission, depending on options selected, $14-$19.50, ages 4 to 12 $9.50-$13.50. Open Friday-Saturday 10 to 8, Sunday-Wednesday 10 to 6, Thursday 10 8. 601 Light St., Baltimore. 410-685-5225.

PORT DISCOVERY -- "Miffy and Friends," through May 15. Interactive fantasy structures, mechanical sculptures and related activities. Open Friday-Saturday 10 to 5, Sunday noon to 5, Tuesday- Thursday 10 to 5. $11, ages 3 to 12 $8.50, under 3 free. 35 Market Pl., Baltimore. 410-727-8120.

LEESBURG ANIMAL PARK -- Petting zoo and related activities, open Friday-Sunday 10 to 5, Tuesday-Thursday 10 to 3. $8.95, seniors and ages 2 through 12 $6.95, younger free. Wagon rides $1, pony rides $2.50. 19270 James Monroe Highway, Leesburg. 703-433-0002.

GARGOYLE'S DEN -- Saturday 10 to 2, for ages 6 to 12. Explore stone carving, mosaics, stained glass and other crafts. $5 per group of up to 4; each additional person $1. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-2934.

CLAUDE MOORE COLONIAL FARM -- Visit a re-creation of an 18th-century family farm, open Friday-Sunday and Wednesday- Thursday from 10 to 4:30. $3, seniors and ages 3 to 12 $2. 6310 Georgetown Pike, McLean. 703-847-0710.

NATIONAL COLONIAL FARM -- The mid-18th-century tobacco plantation is open Friday-Sunday and Tuesday-Thursday from 10 to 5. Adults $2, under 12 50 cents; $5 maximum per family. 3400 Bryan Point Rd., Accokeek. 301-283-2113.

OXON HILL FARM -- The working farm is open daily from 9 to 4:30, with farm demonstrations and tours. Oxon Cove Park, 6411 Oxon Hill Rd., Oxon Hill. 301-839-1176 (TDD: 301-839-1783).

COLVIN RUN MILL -- Tour the 19th-century gristmill 11 to 5 daily except Tuesday. Adults $5, children $3. 10017 Colvin Run Rd., Great Falls. 703-759-2771.

OLD STONE HOUSE -- Tour the 1765 structure Friday-Sunday and Wednesday-Thursday noon to 5. 3051 M St. NW. 202-426-6851.

SULLY HISTORIC SITE -- The restored 1794 mansion, furnished with Federal- period antiques, is open from 11 to 4 daily except Tuesday. Hourly guided tours $5, students $4, seniors and ages 5 to 15 $3. 3601 Sully Rd., Chantilly. 703-437-1794.

TROLLEY MUSEUM -- Ride European and American trolleys, Saturday and Sunday noon to 5. Exhibits free; rides $3, seniors and ages 2 through 17 $2. Northwest Branch Park, 1313 Bonifant Rd., Silver Spring. 301-384-6088.

B&O RAILROAD STATION MUSEUM -- Permanent exhibits include a diorama depicting the trip of Tom Thumb, America's first scheduled passenger train. Adults $5, seniors and students $4, under 13 $2. Open Friday-Saturday 11 to 4, Sunday noon to 5. 2711 Maryland Ave., Ellicott City. 410-461-1944.

TOP OF THE WORLD -- Presentation about Baltimore and a view of the city from the 27th floor observation level. Open Sunday through Friday 10 to 6, Saturday 10 to 8. $5, seniors $4, ages 3 to 16 $3. World Trade Center, 401 E. Pratt St., Baltimore. 410-837-8439.

Library Programs

ACCOKEEK -- Stories for ages 3 to 5, Tuesday at 10:30, and for ages 3 to 6, Wednesday at 7. 16200 Livingston Rd. 301-283-2521.

ARLINGTON CENTRAL -- Stories for ages 3 to 6, Friday at 10. 1015 N. Quincy St. 703-228-5946.

AURORA HILLS -- Stories for ages 4 to 7, Thursday at 4. 735 S. 18th St., Arlington. 703-228-5715.

BADEN -- Stories for ages 2 to 5, Wednesday at 10:30. 13603 Baden-Westwood Rd., Brandywine. 301-888-1152.

BELTSVILLE -- Stories for ages 3 to 5, Wednesday at 10:30. 4319 Sellman Rd. 301-937-0294.

BOWIE -- Stories for ages 3 to 5, Monday at 1 and Thursday at 10:30, and for ages 4 to 6, Tuesday at 7. 15210 Annapolis Rd. 301-262-7000.

CHERRYDALE -- Stories for all ages, Wednesday at 7. 2190 Military Rd., Arlington. 703-228-6330.

DOLLEY MADISON -- Stories and activities for all ages, Monday at 7:30. 1244 Oak Ridge Ave., McLean. 703-356-0771.

FAIRFAX CITY -- Stories for ages 3 to 5, Thursday at 10:30. 3915 Chain Bridge Rd., Fairfax. 703-246-2281.

FAIRMOUNT HEIGHTS -- Storytime for ages 3 to 5, Wednesday at 10:30. 5904 Kolb St. 301-883-2700.

GEORGE MASON -- Stories and songs by Barbara Effron, Tuesday at 10:30 for ages 3 to 5. 7001 Little River Tnpk., Annandale. 703-256-3800.

GLENARDEN -- Stories for ages 2 to 5, Thursday at 10:30. 8724 Glenarden Pkwy. 301-772-5477.

GREAT FALLS -- Stories and activities for ages 1 to 5, Monday at 10:30. 9830 Georgetown Pike, Great Falls. 703-757-8560.

GREENBELT -- Stories for ages 3 to 5, Thursday at 10:30. 11 Crescent Rd. 301-345-5800.

HILLCREST HEIGHTS -- Stories for ages 3 to 5, Tuesday and Thursday at 10:30. 2398 Iverson St. 301-630-4900.

HYATTSVILLE -- Stories in English and Spanish for ages 3 to 6, Saturday at 10:30. Stories for ages 3 to 5, Tuesday at 11, and for ages 3 to 6, Wednesday at 7. 6530 Adelphi Rd. 301-985-4690.

LARGO-KETTERING -- Stories for ages 3 to 5, Wednesday at 7 and Thursday at 10:30. 9601 Capital Lane, Upper Marlboro. 301-336-4044.

MOUNT RAINIER -- Stories for ages 3 to 5, Wednesday at 11. 3409 Rhode Island Ave., Mount Rainier. 301-864-8937.

NEW CARROLLTON -- Stories for ages 3 to 7, Tuesday at 7 and Thursday at 10:15. 7414 Riverdale Rd. 301-459-6900.

SHIRLINGTON -- Stories and activities for ages 3 to 7, Wednesday at 7. 2786 S. Arlington Mill Dr., Arlington. 703-228-6545.

SPAULDINGS -- Stories for ages 2 to 6, Monday at 7, and for ages 3 to 5, Thursday at 10:30. 5811 Old Silver Hill Rd., District Heights. 301-817-3750.

SURRATTS-CLINTON -- Stories for ages 3 to 5, Tuesday at 10:15, 11 and 11:45, and for ages 3 to 7, Wednesday at 7. 9400 Piscataway Rd., Clinton. 301-868-9200.

TYSONS-PIMMIT -- Stories and crafts for ages 3 to 5, Thursday at11. 7584 Leesburg Pike, Falls Church. 703-790-8088.

UPPER MARLBORO -- Stories and activities for ages 3 to 5, Tuesday at 11. 14730 Main St. 301-629-9330.