Looking for family-friendly fun this weekend? Check out an astronomy expo, attend the annual sheep shearing at a historic working farm, get hands-on at a museum or see an adorable children’s literary character brought to life by puppeteers. It’s all happening in the Hudson Valley. Find the details here.

Sunday: Sheep-shearing festival in Sleepy Hollow

Visit an 18th century farm for the annual springtime rite of sheep shearing. The event will feature storytelling by Jonathan Kruk, tours of the mill and manor house and demonstrations of every step of the colonial cloth-making process, from sheep to shawl. Sociable Scottish border collies from Wayside Farm will be showing off their skills at herding sheep – and even ducks – at the all-ages event.

When: 10 a.m.-5 p.m. Sunday, April 21

Info: Philipsburg Manor, 381 North Broadway (Route 9), Sleepy Hollow; 914-631-8200, www.hudsonvalley.org; $14 for adults, $12 for seniors, $8 for children ages 3-17, free for members and children under 3

Sunday: Astronomy expo in Suffern

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Blast off with a planetarium show, check out a solar observing party and participate in space and astronomy activities for kids at the Rockland Astronomy Club’s 22nd annual Northeast Astronomy Forum. Door prizes will be given away throughout the event, and visitors can enter a raffle for big-ticket prizes such as telescopes and binoculars. Nickelodeon fans will enjoy meeting “Jimmy Neutron: Boy Genius” creator John A. Davis, who will be speaking and signing autographs at the event.

When: 10 a.m.-6 p.m. Sunday, April 21

Info: Rockland Community College, 145 College Rd., Suffern; 845-574-4000; www.rocklandastronomy.com/NEAF/index.html; $20 for one day or $35 for a two-day pass; free for children under 16

Sunday: “Grug,” live on stage in in Mamaroneck

Grug is a shaggy tree creature with a knack for inventive problem-solving. This curious character’s amusing escapades will be brought to life with music and colorful puppets in a 35-minute live performance. The Windmill Theatre production, based on the children’s books by Ted Prior, is geared toward ages 2-5.

When: 1:30 p.m. and 3:30 p.m. Sunday, April 21

Info: Emelin Theatre, 153 Library Lane, Mamaroneck; 914-698-0098; www.emelin.org; $13 for children and adults