UPCOUNTY SERVICES CENTER TALK, a county representative answers questions about government services. 10 a.m.-noon, lobby, Damascus Library, 9701 Main St., Damascus. Free. 240-773-9444.
BLOOD PRESSURE SCREENINGS, provided by the American Red Cross. 10-11:45 a.m., Aspen Hill Library, 4407 Aspen Hill Rd., Rockville. Free. 240-773-4410.
MONTGOMERY COUNTY FAIR PROGRAMS, a chance to learn about the Montgomery County Agricultural Fair, scheduled for Aug. 12-20 in Gaithersburg, and to meet a live farm animal. 10:30 a.m., Olney Library, 3500 Olney-Laytonsville Rd., Olney, 301-570-1232; 2 p.m., White Oak Library, 11701 New Hampshire Ave., Silver Spring, 301-622-2492. Free.
GERMANTOWN PUPPET THEATER, the Stevens Puppets company presents "The Wizard of Oz." 10:30 a.m. and 7 p.m., Germantown Library, 12900 Middlebrook Rd., Germantown, 240-777-0110; 2 p.m., Olney Library, 3500 Olney-Laytonsville Rd., Olney. Tickets required and available at the library, 301-570-1232. Free.
MAGIC SHOW AND BOOK TALK, Professor Mervyn Mugwump (aka Jeb Brack) performs magic and comedy and introduces wizards and monsters. 2 p.m., Wheaton Library, 11701 Georgia Ave., Wheaton. Free; tickets required and available at the children's desk. 240-777-0678.
BETHESDA PUPPET SHOW, Joe Pipik performs with his backpack puppets. 2 p.m., Bethesda Library, 7400 Arlington Rd., Bethesda. Free. 301-986-4300.
SILVER SPRING CONCERT, singer, guitarist and songwriter Amy Lemich-McNabb performs. 1 p.m., Margaret Schweinhaut Senior Center, 1000 Forest Glen Rd., Silver Spring. Free. 301-681-1255.
OLNEY COMPUTER TUTORIAL, for beginners, a library volunteer demonstrates how to create documents, send e-mail and search the Web. 9:30 a.m., Olney Library, 3500 Olney-Laytonsville Rd., Olney. Free; registration required. 301-570-1232.
EXERCISE CLASS, for the severely overweight and obese, a self-paced movement class to increase lung capacity, flexibility and strength in a supportive environment; good for pre- and postoperative patients. 10-11 a.m. Saturdays, through Aug. 27, Montgomery Hills Baptist Church, 9727 Georgia Ave., Silver Spring. $15 per person. 301-754-8800.
WHITE OAK PUPPET SHOW, the Stevens Puppets company performs "The Wizard of Oz." 1 p.m., White Oak Library, 11701 New Hampshire Ave., Silver Spring. Free. 301-622-2492.
EATING DISORDERS SUPPORT GROUP, for people recovering from body-image and eating disorders, sponsored by Eating Addictions Anonymous, a 12-step fellowship. 7 p.m. Saturdays, Holy Cross Hospital, second floor, 1500 Forest Glen Rd., Silver Spring. Free. 301-526-6746.
NARCOTICS ANONYMOUS MEETING, 7:30 p.m., Shady Grove Adventist Hospital, 9901 Medical Center Dr., Rockville. Free. 800-543-4670.
SINGLE PARENT ORIENTATION, information about discussion groups, socials, workshops, sports, and child and adult activities, sponsored by Parents Without Partners, Chapter 60; buffet follows orientation. 11 a.m., CiCi's Pizza, 12111 Rockville Pike. Free; buffet: $5.48; children, $4.18; registration required. 301-469-6645.
ROCKVILLE ALS CAREGIVER SUPPORT, for Montgomery County caregivers of amyotrophic lateral sclerosis (ALS) patients, sponsored by the ALS Association. 2-4 p.m., Adventist HealthCare, Shady Grove Nursing and Rehabilitation Center, 9701 Medical Center Dr., Rockville. Free. 301-978-9855.
POTOMAC RIVER STORIES, storyteller and eco-historian Hayden Mathews discusses "Pigs, Pearls and Piracy," about the Potomac River and the people who have lived on its banks since the 1500s; participants can bring a picnic for dinner after the talk. 5-7 p.m., River Center at Lockhouse 8, Lock 8, off Clara Barton Parkway, C&O Canal National Historical Park, Cabin John. Free. 301-608-1188, Ext. 211.
ALCOHOLICS ANONYMOUS MEETING, 7:30 p.m., Shady Grove Adventist Hospital, 9901 Medical Center Dr., Rockville. Free. 202-966-9115.
OPERA LECTURE AND VIDEO, Irv Nurik discusses "Maria Callas: Did Her Life Follow Tosca?" 1:15-2:15 p.m., Holiday Park Center, 3950 Ferrara Dr., Wheaton. Free. 301-468-4448.
ADULT SOCIAL SKILLS GROUP, for people 21 and older with Asperger's syndrome or related disorders, a chance to learn about skills for making friends, initiating conversation and expressing feelings. 6:30-7:30 p.m., Jewish Social Services Agency, 6123 Montrose Rd., Rockville. Free. 301-816-2633.
BETHESDA PARENTING CLASS, staff members of the YMCA's Youth and Family Services discuss "Sibling Rivalry: Why Kids Fight and What to Do About It." 7-9 p.m., Davis Library, 6400 Democracy Blvd., Bethesda. Free; registration required. 301-229-1347.
CHILDREN'S STORIES, for ages 5-12, the Activated Storytellers dramatize two tales from other lands. 7 p.m., Chevy Chase Library, 8005 Connecticut Ave., Chevy Chase. Free; tickets required. 301-986-4313.
HOSPITAL PICNIC AND BAZAAR, food, bazaar and entertainment; proceeds benefit Montgomery General Hospital. 10 a.m.-8 p.m., the hospital, 18101 Prince Philip Dr., Olney. Free. 301-774-8969.
WHEATON HEALTH TALK, physician Robert Rifkin, director of the White Flint Healing Center, discusses drug-free approaches to better health. 1:15-2:15 p.m., Holiday Park Center, 3950 Ferrara Dr., Wheaton. Free. 301-468-4448.
ECOLOGICAL PROGRAM, members of Reptiles Alive present "Rainforest Alive" and introduce live animals. 7 p.m., Long Branch Library, 8800 Garland Ave., Silver Spring. Free. 240-777-0910.
ASPERGER'S SYNDROME PARENTS SUPPORT, a chance to meet with other parents of children with Asperger's syndrome, share coping strategies and resources, develop networks and gain support. 7:30-8:45 p.m. Tuesdays, through Aug. 30, Jewish Social Service Agency, 6123 Montrose Rd., Rockville. Free; registration required. 301-816-2633.
KENSINGTON CLOWN CLASS, for ages 3 and older, Bubbles the Klown entertains and shows what it takes to be a clown. 10 a.m., Noyes Children's Library, Carroll and Montgomery avenues, Kensington. Free. 301-929-5533.
WHEATON MUSIC PROGRAM, for children 4 and younger and their caregivers, presented by Nancy Nuttle. 10:15 a.m. and 11 a.m., Wheaton Library, 11701 Georgia Ave., Wheaton. Free; registration required. 240-777-0678.
WORD PROCESSING CLASS, participants can learn how to create and save documents, open and edit documents, move text and correct spelling mistakes. 11:30 a.m., Quince Orchard Library, 15831 Quince Orchard Rd., Gaithersburg. Free; registration required. 240-777-0200.
OLNEY COMPUTER TUTORIAL, for beginners, a library volunteer demonstrates how to create documents, send e-mail and search the Web. 1 p.m., Olney Library, 3500 Olney-Laytonsville Rd., Olney. Free; registration required. 301-570-1232.
DAMASCUS MAGIC SHOW, Turley the Magician presents "A Galaxy of Magic." 1:30 p.m. and 3 p.m., Damascus Library, 9701 Main St., Damascus. Free; tickets required. 240-773-9444.
CHILDREN'S STORIES, storyteller Elizabeth Thornton presents "Into the Wild." 2 p.m., Aspen Hill Library, 4407 Aspen Hill Rd., Rockville. Free. 240-773-4410.
ROCKVILLE CHILDREN'S THEATER, for ages 5 and older, the Rainbow Interactive Theater Company presents the story of Ferdinand the bull. 2 p.m., Twinbrook Library, 202 Meadow Hall Dr., Rockville. Free. 240-777-0240.
RUNAWAYS SUPPORT GROUP, counseling for runaway youths, their parents or their guardians, sponsored by Operation Runaway, a program of the Potomac Ridge Behavioral Health Center and the Montgomery County Police Department. 6:30-8:30 p.m. Wednesdays, 14901 Broschart Rd., Rockville. Free; registration required. 800-204-8600 or www.potomacridge.org.
BETHESDA STORY TIME, with storyteller Diane Macklin. 7 p.m., Bethesda Library, 7400 Arlington Rd., Bethesda. Free. 301-986-4300.
SILVER SPRING CHEMISTRY CLASS, staff members of the Maryland Science Center conduct experiments with matter, energy and chemicals. 7 p.m., White Oak Library, 11701 New Hampshire Ave., Silver Spring. Free. 301-622-2492.
YOUTH GRIEF SUPPORT, for students in grades 9-12 who have experienced the loss of a loved one, sponsored by Hospice Caring. 7-8:30 p.m. Wednesdays. Call for location in Rockville. Free; registration required. 301-990-8904.
BETHESDA INTERNET CLASS, learn how to find information on the Internet. 10 a.m., Little Falls Library, 5501 Massachusetts Ave., Bethesda. Free; registration required. 301-320-4880.
COUNTY FAIR STORIES AND ANIMALS, teenage volunteers bring fair stories and farm animals in anticipation of the Montgomery County Agricultural Fair, scheduled for Aug. 12-20 in Gaithersburg. 10:30 a.m., Kensington Park Library, 4201 Knowles Ave., Kensington. Free. 301-897-2211.
FAIRLAND BOOK TALK, Gish Jen's novel "The Love Wife." 10:30 a.m., Fairland Library, 14910 Old Columbia Pike, Burtonsville. Free. 301-421-5400.
SPINAL DISORDERS, Suburban Hospital physician Ali Moshirfar discusses spinal maladies, symptoms and treatment. 1-2 p.m., Rockville Senior Center, 1150 Carnation Dr., Rockville. Free. 240-314-8810.
COUNTY FAIR ANIMAL CARE TALK, learn about the care and feeding of a farm animal in anticipation of the Montgomery County Agricultural Fair, scheduled for Aug. 12-20 in Gaithersburg. 2 p.m., Wheaton Library, 11701 Georgia Ave., Wheaton. Free. 240-777-0678.
ROCKVILLE DINOSAUR SHOW, for ages 6 and older, staff members of the Maryland Science Center use puppets and fossils to show how scientists know that dinosaurs once roamed the earth. 2 p.m., Rockville Library, 99 Maryland Ave., Rockville. Free. 301-217-3800.
OLNEY CHILDREN'S STORIES, for ages 6 and older, Tracey Eldridge tells safari tales and sings songs. 2 p.m., Olney Library, 3500 Olney-Laytonsville Rd., Olney. Free. 301-570-1232.
JOURNALIST-AUTHOR LECTURE, Katherine M. Skiba, Washington correspondent for the Milwaukee Journal Sentinel, who has reported from Iraq, discusses her book "Sister in the Band of Brothers: Embedded With the 101st Airborne in Iraq." 7:30 p.m., Friendship Heights Village Center, 4433 S. Park Ave., Chevy Chase. Free; registration requested. 301-656-2797.
-- Compiled by TINA TOLL
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