It's a weekend of festivals, egg hunts, and lots of spring-time fun!

Friday, April 12 

Backyard and Beyond: Forest Fridays. The Discovery Museum, 177 Main St., Acton. 10-10:45 a.m. Enjoy a nature-based activity based on the weather and season either in the Discovery Woods or the adjacent conservation land. Recommended for ages 2 to 6. Free with admission. Members free, nonmembers $14.50, ages under 1 free. discoveryacton.org.

Baby Signing. Leominster Public Library, 30 West St., Leominster. 10-11 a.m. Join Baby Kneads as we learn how to teach your baby sign language featuring props, toys, puppets and more. For ages 5 through pre-verbal. Register ahead. Free. leominsterlibrary.org.

Preschool Story & Nature Hour: Kites & Wind. Wachusett Meadow Wildlife Sanctuary, 113 Goodnow Rd., Princeton. 10:30-11:30 a.m. Come for an hour of nature-themed fun with your youngster and take to the skies and explore wind and kites. Register ahead. Member children $3, nonmember children $4, adults free. massaudubon.org.

Sensory Storytime. Newton Free Library, 330 Homer St., Newton. 11:15 a.m. Look, listen, touch, and play as we explore different concepts and story-time activities. For ages 2 to 4. Free. newtonfreelibrary.net.

Scribble Bots. The Discovery Museum, 177 Main St., Acton. 2-4:30 p.m. Celebrate National Robotics Week and create dynamic drawings using simple DIY robotic contraptions made of motors, pipe cleaners, and more to set a machine in motion. Free with admission. Members free, nonmembers $14.50, ages under 1 free. discoveryacton.org.

Special Egg Hunt. Chapel of the Cross, 160 Flanders Rd., Westborough. 6-7 p.m. Special needs children and their families are invited to hunt for eggs. Reservations required. chapelcares.com/special-eeh.

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Saturday, April 13 

Family Farm Festival. Old Sturbridge Village, 1 Old Sturbridge Village Rd., Sturbridge. 9:30 a.m.-4 p.m. Meet the Village’s newborn chicks, lambs, and cattle, enjoy a wagon ride, learn about gardening, and more to celebrate Spring. Free with admission. Adults $28, youths $14, ages under 4 free. osv.org.

Elijah T. Grasshopper & Friends. Jasper Hill Restaurant, 270 Exchange St., Millis. 10 a.m.-12 p.m. Interactive story songs to spark your imagination during this special family brunch and music series. Adults $8, children $6. jasperhillmillis.com.

New England Folk Festival. Mansfield High School, 250 East St., Mansfield. 10 a.m.-11:30 p.m. Enjoy cultural education, performers, dance, music, food, and more throughout the day embracing New England and folk traditions. Member adults $27, youths 9 to 17 $9, ages under 9 free; nonmember adults $30, youths $10, ages under 9 free. neffa.org.

The Great Egg Hunt. Capen Hill Nature Sanctuary, 56 Capen Rd., Charlton. 10 a.m.-3 p.m. Hike through wooded trails and hunt for more 5,000 eggs decorated to look like forest friends. Meet resident animals in the visitor center, enjoy face painting, food and visits with the Easter Bunny. $10 per family. capenhill.org.

Fantastic Mr. Fox. Coolidge Corner Theatre, 290 Harvard St., Brookline. 10:30 a.m. Mr. and Mrs. Fox are put in danger after Mr. Fox plots the greatest chicken heist the world has ever seen, in this animated adaptation of the classic family story. Adults $9.50, children $7.50. coolidge.org.

The Yo-Yo People. TCAN: Center for Arts, 14 Summer St., Natick. 11 a.m. Three-time Guinness World Record holders bring their unbelievable skills to you, as they perform a variety of tricks old and new that amaze audiences of all ages. Adults $12, children $10. natickarts.org.

Easter Egg Hunt. Chapel of the Cross, 160 Flanders Rd., Westborough. 11 a.m.-1 p.m. Games, crafts, bounce houses, face painting, hot dogs, popcorn -- and, of course, an egg hunt! Please bring a non-perishable food item to donate to the food pantry. Free. chapelcares.com.

Backyard and Beyond: World Fish Migration Day and the Year of the Salmon. The Discovery Museum, 177 Main St., Acton. 11 a.m.-1 p.m. Learn about the local migratory fish species and the obstacles they face in rivers and streams. Pretend you’re a fish swimming upstream. Free with admission. Members free, nonmembers $14.50, ages under 1 free. discoveryacton.org.

Sheep & Wool Festival. Wachusett Meadow Wildlife Sanctuary, 113 Goodnow Rd., Princeton. 1-4 p.m. Learn how sheep are sheared and how those fleeces eventually become warm hats and mittens, in a day of kids’ activities, crafters, and more. Register ahead. Member adults $7, children $4; nonmember adults $10, children $5; ages under 2 free. massaudubon.org.

Boston Children’s Chorus. Isabella Stewart Gardner Museum, 25 Evans Way, Boston. 1:30 p.m. Youth singers from the Boston Children’s Chorus brings a wonderful afternoon concert for all to enjoy. $15.-36. gardnermuseum.org.

Bilingual Storytime: Russian. Newton Free Library, 330 Homer St., Newton. 2-3 p.m. Stories, songs, and movement are presented in English and Russian. For ages 3 to 5. Free. newtonfreelibrary.net.

Daddy and Me: Build a Birdhouse. Leominster Public Library, 30 West St., Leominster. 3-4 p.m. Bring your dad/caregiver as we read birdhouse stories, and build a birdhouse with hammer, nail, and paint. For ages 4 to 7. Register ahead. Free. leominsterlibrary.org.

Especially for Me: Free Evening for Families with Deaf, Hard of Hearing, or KODA Children. The Discovery Museum, 177 Main St., Acton. 5-8 p.m. A free evening where you can play, explore, and learn with available ASL Interpreters and dinner provided. Register ahead. Free. discoveryacton.org.

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Sunday, April 14 

Family Farm Festival. Old Sturbridge Village, 1 Old Sturbridge Village Rd., Sturbridge. 9:30 a.m.-4 p.m. Meet the Village’s newborn chicks, lambs, and cattle, enjoy a wagon ride, learn about gardening, and more to celebrate Spring. Free with admission. Adults $28, youths $14, ages under 4 free. osv.org.

New England Folk Festival. Mansfield High School, 250 East St., Mansfield. 10 a.m.-5:30 p.m. Enjoy cultural education, performers, dance, music, food, and more throughout the day embracing New England and folk traditions. Member adults $27, youths 9 to 17 $9, ages under 9 free; nonmember adults $30, youths $10, ages under 9 free. neffa.org.

Earth Day Festival. Springfield Museums, 21 Edwards St., Springfield. 11 a.m.-4 p.m. Eco-friendly demonstrations, bluegrass music, and special exhibits celebrate Earth Day at the Science Museum. Free. springfieldmuseums.org.

27th Annual Newton Heartbreak Hill Road Race. Newton City Hall, 1000 Commonwealth Ave., Newton. 11:30 a.m.-3 p.m. Participate in this one mile run up and down historic Heartbreak Hill for youngsters, adults, and family. Register ahead. newtoncommunitypride.org/roadrace

Weston Wind Quintet Concert. Newton Free Library, 330 Homer St., Newton. 2-3 p.m. Musicians come together for this five-piece woodwind concert. Free. newtonfreelibrary.net.