Today

"Chon: A Nearly Fatal Illusion" - Biosphere 2 Gallery, 32540 S. Biosphere 2 Road, Oracle. Biosphere 2 artist-in-residence Deborah Ford's new photographic works. 9 a.m.-4 p.m. daily. Included with $20 admission; discounts available. 838-6200.

Tucson African Violet Society Monthly Meetings - The Inn at the Fountains, 5830 N. Fountains Ave. Learn how easy it is to grow African violets. 2:30-4:30 p.m. March 14. $15 to join the club. 574-1367.

Student Artwork From the Arizona State Schools for the Deaf and the Blind - Tohono Chul Park, 7366 N. Paseo del Norte. 9 a.m.-5 p.m. daily. Included with $8 admission. 742-6455.

AARP Tax-Aide - Oro Valley Library, 1305 W. Naranja Drive. Volunteer-run tax-preparation and assistance serving low- and moderate-income taxpayers. 1-4 p.m. Tuesdays and Thursdays. Free. 594-5580.

Farmers Market - Highlands at Dove Mountain, 4949 W. Heritage Club Blvd. 9 a.m.-1 p.m. Thursdays. Free. 603-8116.

Geology of the Tucson Mountains - Saguaro National Park Red Hills Visitor Center, 2700 N. Kinney Road. 2:15-3 p.m. Feb. 21. Park entrance fee. 733-5158.

Friday

Not Burnt Out Just Unscrewed Improv Comedy Troupe - Rock N' Java, 7555 W. Twin Peaks Road. Family-friendly improvisational comedy. 7 p.m. the third Friday of the month. Free. 861-2986.

Dewdrop Arts & Crafts Fair - Golden Corral, 6865 N. Thornydale Road. Paintings, pottery, jewelry and metal work by local artists. 9 a.m.-5 p.m. March 15-16; 10 a.m.-4 p.m. March 17. Free. 488-5780.

Catalina Art and Farmers Market - 16733 N. Oracle Road. 10 a.m.-2 p.m. Fridays. Free. 825-4427.

Friday Fun Knitters - Foothills Mall, 7401 N. La Cholla Blvd. Knitters of any skill level are welcome. Meet in the food court. 10 a.m. Fridays. Free. 293-0781.

Birding Adventure - Saguaro National Park Red Hills Visitor Center, 2700 N. Kinney Road. Join an expert birder on a 100-yard nature walk. 10:45-11:30 a.m. Fridays. Park entrance fee. 733-5158.

Teen Games - Oro Valley Library, 1305 W. Naranja Drive. PS2 and board games. 3-5 p.m. March 15. Free. 594-5580.

"The Mystery Genius of Sherlock Holmes II" - The Comedy Playhouse, 3620 N. First Ave. The Comedy Playhouse will present, in concert format, four classic Holmes mysteries. 7:30 p.m. Friday and Saturday; 3 p.m. Sunday. $12; discounts available. 260-6442.

Saturday

Sonoran Science Academy Spring Chess Tournament - Sonoran Science Academy, 2325 W. Sunset Road. For students in grades K-12. 9 a.m.-3 p.m. March 16. $18. 333-7310.

Car Seat Checkup and VIN Etching Event - Oro Valley Marketplace, 11855 N. Oracle Road. 10 a.m.-2 p.m. March 16. Free. 229-5080.

"Face to Face" Tribute to Billy Joel and Elton John - DesertView Performing Arts Center, 39900 S. Clubhouse Drive, SaddleBrooke. 4 and 7:30 p.m. March 16. $22 in advance; $24 at the door. 825-2818.

Wildflower and Desert Plant Walk - Arizona-Sonora Desert Museum, 2021 N. Kinney Road. Hike in washes and on rocky trails at an easy pace. 8-11:30 a.m. March 16. $40. 883-3025.

Sunday

Silver Plants: Spring Plant Sale - Tohono Chul, 7366 N. Paseo del Norte. 9 a.m.-5 p.m. March 16; 9 a.m.-4 p.m. March 17. Free. 742-6455.

Tucson Model A Ford Club Show - The Fountains at La Cholla, front entrance, 2001 W. Rudasill Road. Followed by a performance by the Cañada del Oro Barbershop Chorus at 2 p.m. 11:30 a.m.-2 p.m. March 17. Free. 797-2001.

Monday

Baby Story Time - Oro Valley Library, 1305 W. Naranja Drive. For accompanied babies up to 18 months. Children do activities that promote development and learning. 10-10:30 a.m. Free. 594-5580.

Tuesday

Farmers Market (Community Food Bank of Southern Arizona) - Marana Health Center, 13395 N. Marana Main St. 3-6 p.m. Tuesdays. Free. 616-1425.

Whales in the Desert - Saguaro National Park Red Hills Visitor Center, 2700 N. Kinney Road. Learn about the connection between whales and the Sonoran Desert. 3:15 p.m. Tuesdays. Park entrance fee. 733-5158.

Wednesday

Writers' Workshop - Oro Valley Library, 1305 W. Naranja Drive. Discuss your writing and learn creative-writing techniques with Alexis Powers. 9-11 a.m. March 20. Free. 594-5580.

Country Dance Instruction - Flowing Wells Community Center, 1660 W. Ruthrauff Road. For couples. Complete registration form and pay in advance. 7-9 p.m. Wednesdays. $40. Call 877-6090 or email leisureclasses@pima.gov

Go to dailystarcalendar.com for more calendar listings and to submit an event at least three weeks in advance.