“JJ’s Arcade.” Zach Theater and Teatro Vivo present this play about a boy who builds an arcade out of leftover cardboard. For ages 7 and up. 7 p.m. Fridays, 2 p.m. Saturdays and Sundays except April 30, through May 7. 2 p.m. April 29 sign-language-interpreted and sensory-friendly performance. $13-$15. Emma S. Barrientos Mexican American Cultural Center, 600 River St. zachtheatre.org
“The Imaginators.” Austin Playhouse presents a story of a make-believe adventure, monster included. Free, but make reservations. 2 p.m. Saturday, noon Friday. Austin Playhouse at Austin Community College’s Highland Campus., 6001 Airport Blvd. austinplayhouse.com.
“Elephant and Piggie: We Are in a Play!” The Mo Willems story comes to the stage. 2 p.m. Saturdays and Sundays through April 30. 11 a.m. Saturdays. $16-$21. Zach Theatre’s Kleberg Theatre, 1421 W. Riverside Drive. zachtheatre.org
Thinkery. Little Thinkers Club: Art Start: Upcycle! 9:45 a.m. Wednesdays for 1-year-olds, 10:45 a.m. Wednesdays for 2-year-olds through May 24. $20 per class. Tinkering Tots: Mini Music Makers! 9:45 a.m. Fridays for 2-year-olds; 10:45 a.m. Fridays for 3-year-olds through May 26. $20 a class. Baby Bloomers for kids infant to 3. Study the the sky. 9 a.m. Mondays and Saturdays. Special guests throughout the month. $5. Get Pumped! For ages 4 and up. Learn about the circulatory system. 11:15 a.m., 1:15 p.m., 3:15 p.m. Sunday, April 29-30. $8. Seed Surprises. Ages 4 and up. Make your own seed-spreading devices. 11:15 a.m. and 1:15 p.m. Saturday-April 23. $8. Biomes in a Bottle. Ages 8 and up. Engineer a seed. 3:15 a.m. Saturday-April 23, $8. Thinkery, 1830 Simond Ave. thinkeryaustin.org
Texas Museum of Science & Technology. Science Saturday: Earth Day. Learn more about ecology. Noon-4 p.m. Saturday. Star Party. Look at the stars. 8 p.m. Friday. Texas Museum of Science & Technology, 1220 Toro Grande Drive, Cedar Park. txmost.org
Umlauf Sculpture Garden & Museum. Kids Kraft Eco Arts. 9 a.m. Saturday kindergarten through second grade; 11 a.m. Saturday third through fifth grade. $15. Umlauf Sculpture Garden & Museum, 605 Robert E. Lee Road. umlaufsculpture.org
Wildflower Center. Sprouts. Hands-on preschool program. 10 a.m. Wednesdays and Fridays. Nature Play Hour. Play in the Family Garden. 11 a.m. Saturdays. Wildflower Center, 4801 La Crosse Ave. wildflower.org
Movies in the Park: “FernGully,” 8:30 p.m. Thursday, Palm Park. austinparks.org.
BookPeople events. Margaret Petersen Haddix reads “In Over Their Heads,” 7 p.m. Wednesday; Chelsea Clinton reads “It’s Your World,” 6:30 p.m. Saturday. Liz Garton Scanlon and Audrey Vernick read “Bob, Not Bob!” noon Saturday. Story times: Armstrong Community Music School, 10:30 a.m. Tuesday; Tiny Tails Petting Zoo, 10:30 a.m. Wednesday; Pets are the Best, 11:30 a.m. Saturday; BookPeople, 603 N. Lamar Blvd. bookpeople.com
Barnes & Noble Events: Saturday story times at all locations: “We are Dinosaurs,” Saturday.
At the library
Bow Wow Reading with Bonnie the Dog. 11:30 a.m. Saturday, Yarborough Branch.
Saturday Family Movie “Miss Peregrine’s Home for Peculiar Children.” 2 p.m. Saturday, University Hills Branch.
Crafternoon. 3:30 p.m. Tuesday, Howson Branch; 4 p.m. Tuesday, Cepeda Branch.
Learn Computer Coding. 6 p.m. Tuesday, Carver Branch.
Art Smart: Green Man Leaf Art. Tuesday.
Million Mile Month 2017. 3:30 p.m. Thursday, North Village Branch.
Hogwarts Spring Training Camps: Hogwarts Sports. 5 p.m. Thursday, Yarborough Branch.
Family Movie Night: “The Lorax.” 3 p.m. Tuesday, Terrazas Branch.
NBTween Book Club: “Finding Winnie,” 6 p.m. Wednesday, Yarborough Branch. “When the Sea Turned Silver.” 6 p.m. Thursday, Twin Oaks Branch.
T(w)een STEAM Lab. For ages 7 and up. 3 p.m. Wednesday, Carver Branch.
Mother Daughter Book Club. “Where the Mountain Meets the Moon.” 6 p.m. Wednesday, Hampton Branch.
Juntos Online Tech Scavenger Hunt. 2 p.m. Thursday, Carver Branch.
Perler Bead Palooza. 3 p.m. Saturday, Faulk Central Library.