ELLICOTT CITY MIDDLE AGES STORY TIMES, for adults and children ages 7 and older, tales and activities, including scarf juggling, 11 a.m. today; stories, and more, 3 and 7 p.m. Monday, and 11 a.m. Aug. 5, Miller Branch Library, 9421 Frederick Rd., Ellicott City. Free; preregistration required. 410-313-1950.
AQUARIUM DOLPHIN PROGRAM, see dolphins' food being prepared in the marine mammal kitchen, visit the life support room and learn how dolphins are maintained, and meet dolphins up close, 2:30-4:30 p.m., National Aquarium in Baltimore, Pier 3, 501 E. Pratt St., Baltimore. $58; ages 60 and older, $54; ages 8-11, $49; preregistration required. 410-576-3833.
COOKSVILLE CHESS CLUB, for ages 9-17, players of all levels welcome, some basic knowledge required, sponsored by the Howard County Chess Club, 5-7 p.m., Glenwood Branch Library, 2350 Route 97 (Roxbury Mills Road), Cooksville. 410-313-5577.
COLUMBIA ORIGAMI STORY TIME, for adults and children ages 8 and older, hear stories and make an origami crown and other items, 7 p.m., Howard County Central Library, 10375 Little Patuxent Pkwy., Columbia. Free; preregistration required. 410-313-7880.
ELLICOTT CITY BRIDGE PROGRAM, play and improve your skills, bring a bag lunch, coffee and tea are available, sponsored by the Howard County Department of Recreation and Parks, 9:30 a.m.-12:30 p.m. Fridays, Kiwanis-Wallas Recreation Center, 10481 Frederick Rd., Ellicott City. Free. 410-313-7279.
STEVENSON NATIVE AMERICAN PROGRAM, for ages 8-12, "Native American Skills," discussion about Native Americans, a hike to a wigwam, making a friction fire, Native American games and information about early Native American communication techniques, 10 a.m.-noon, Irvine Nature Center, 8400 Greenspring Ave., Stevenson. $8; members, $5; preregistration required. 410-484-2413.
HARRY POTTER TRIVIA CONTEST, for adults and children ages 8 and older, test your knowledge of Harry Potter books, includes prizes and refreshments, 1:30-4 p.m., Glenwood Branch Library, 2350 Route 97 (Roxbury Mills Road), Cooksville. Free; preregistration required. 410-313-5577.
LAUREL BIRD WALK, for ages 16 and older, a guided walk to look for birds in a refuge, field guides and binoculars recommended, 7-8:30 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.
COLUMBIA MASTER DANCE CLASS, for adults and children ages 12 and older with a minimum of two years' dance training, Rachel Nyland of the Howard County Ballet Company teaches modern dance and hip-hop, sponsored by the Long Reach Community Association, 2-3:30 p.m., Stonehouse, 8775 Cloudleap Ct., Columbia. $15; limited space; preregistration required. 410-465-7674.
BALTIMORE AQUARIUM SLEEPOVERS, for adults and children ages 8 and older, spend the night with sharks, take a guided tour behind the scenes through the aquarium, visit the food-preparation area for sharks and rays, participate in hands-on activities in the shark lab and crafts station, sleep in the underwater viewing area with the sharks sleeping nearby, and have breakfast in the morning, 5 p.m. Sunday-9 a.m. Monday; other sleepovers begin Aug. 5, 6 and 8, National Aquarium in Baltimore, Pier 3, 501 E. Pratt St., Baltimore. $69; ages 60 and older, $65; ages 8-11, $59. 410-576-3800 or www.aqua.org.
BACK-TO-SCHOOL LESSONS REVIEW, for ages 9-14, tutors help students review core subjects for school, includes exercises and other activities, 9:30 a.m.-noon Monday-Aug. 6, East Columbia Branch Library, 6600 Cradlerock Way, Columbia. Free; preregistration required. 410-313-7000.
ARTHRITIS EXERCISE CLASS, ongoing, exercises and other activities designed to increase mobility and function and decrease pain and stiffness, taught by Arthritis Foundation-certified instructors, sponsored by the Columbia Association Athletic Club, 11:30 a.m.-12:15 p.m. Mondays and Fridays, 5435 Beaverkill Rd., Columbia. $3; members, free. 410-730-6744.
ELLICOTT CITY PIANO CAMPS, for beginners ages 7-10, "Blast Off With Piano," one-week and two-weeks camps, 9 a.m.-noon weekdays, through Aug. 13; for ages 10-13, "Keyboard Adventure Camp," a one-week camp, 12:30-3:30 p.m. Aug. 16-20, sponsored by Piano Perspectives School of Music, classes held at the Howard County Center for the Arts, 8510 High Ridge Rd., Ellicott City. One week, $120; two weeks, $225; preregistration required. 410-465-6729 or www.pianoperspectives.org.
COOKSVILLE NATURE PROGRAM, learn how to create a wildlife habitat, discussion led by a staff member of the Howard County Department of Recreation and Parks, 7 p.m., Glenwood Branch Library, 2350 Route 97 (Roxbury Mills Road), Cooksville. Free. 410-313-5577.
ARTHRITIS AQUATIC CLASS, ongoing, gentle exercises in warm water to aid in decreasing pain and stiffness, taught by Arthritis Foundation-certified instructors, sponsored by the Columbia Association Swim Center, 9:30-10:15 a.m. Tuesdays and Thursdays, 10400 Cross Fox Lane, Columbia. $3; association members, free. 410-313-7000.
WOODSTOCK KIDS NATURE PROGRAM, for children ages 3-5 accompanied by an adult, "Outstanding Owls," stories, a nature walk, weather permitting, and other activities, sponsored by the Howard County Conservancy, 10-11:30 a.m., Mount Pleasant Farm, 10520 Old Frederick Rd., Woodstock. Children, $5; accompanying adults, free; preregistration required. 410-465-8877.
ELKRIDGE FROGS STORY TIME, for ages 3-7, stories, songs and more, 11 a.m., Elkridge Branch Library, 6540 Washington Blvd. Free; preregistration required. 410-313-5085.
COLUMBIA SENIORS INTERNET PROGRAM, learn how to use the Internet, small group sessions, hands-on practice, 11 a.m., Howard County Central Library, 10375 Little Patuxent Pkwy., Columbia. Free; preregistration required. 410-313-7860.
COLUMBIA CRAFT PROGRAM, for adults and children ages 11 and older, make a piece of chain mail or jewelry, bring a Frisbee and/or a pair of flat-nosed pliers, 6:30 p.m., Howard County Central Library, 10375 Little Patuxent Pkwy., Columbia. Free; preregistration required. 410-313-7860.
BALTIMORE BOOKWORMS PROGRAM, for children ages 3-12 accompanied by an adult, a staff teacher will read a book to the children and then take them to a gallery or a collection of artifacts in the Baltimore Museum of Industry that relates to the story read, children can also make a project to take home, 11 a.m. Wednesdays, through Aug. 25, the museum, 1415 Key Hwy., Inner Harbor South, Baltimore. Free with museum admission of $10, adults; seniors and students, $5; ages three and younger, free. 410-727-4808 or www.thebmi.org.
CHILDREN'S RECIPE CLASS, for children ages 6 and older, prepare food from recipes without using a stove using peanut, tomato, milk and egg products, 2 p.m., Savage Branch Library, Gorman and Knights Bridge roads, Laurel. Free; preregistration required. 410-880-5978.
STEVENSON NATURE PROGRAM, for ages 5 and older, meet animals at the nature center, includes reptiles, amphibians and birds, 6-7 p.m., Irvine Nature Center, 8400 Greenspring Ave., Stevenson. $8; members, $5; preregistration required. 410-484-2413.
COLUMBIA PARENTING WORKSHOP, "Relationship Building," learn about strengthening parenting skills of parents and caregivers and improving the parent and child relationship, sponsored by the Family Tree, an organization funded by Howard County's Local Children's Board, 6:30-8:30 p.m. Wednesdays, through Aug. 25, Columbia Teen Center, the Barn, Oakland Mills Village Center, 5800 Robert Oliver Pl. Free; preregistration required. 410-889-2300.
LIONS CLUB ORIENTATION MEETING, for those interested in joining the Columbia Lions Club, discussion of future club activities and fundraising events, 6:30 p.m. the first and third Wednesdays of each month, Tiber River Tavern, 3733 Old Columbia Pike, Ellicott City. Meeting, free; annual membership dues, $80. 410-964-8685.
COOKSVILLE BOOK DISCUSSION, for children ages 11 and older accompanied by an adult, "When Zachary Beaver Came to Town," by Kimberly Willis Holt, sponsored by the Glenwood Branch Library's Mother-Daughter Book Group, 7-8:30 p.m., the library, 2350 Route 97 (Roxbury Mills Road), Cooksville. Free; preregistration required. 410-313-5577.
COLUMBIA LEADERSHIP TRAINING, for ages 11-16, learn about leadership skills through listening, speaking and dealing with others; certificates for course completion, 9:30 a.m.-3:30 p.m., East Columbia Branch Library, 6600 Cradlerock Way. Free; preregistration required. 410-313-7704.
PARENTS GRIEF SUPPORT GROUP, for parents who are grieving the death of a child, 6:30-8 p.m. Thursdays, through Aug. 19, Hospice of Howard County, 5537 Twin Knolls Rd., Columbia. Free; preregistration required. 410-730-5072.
-- Compiled by LINDA JAMES
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