Kids events in the Boston area this weekend

9 AM – 4 PM·Museum of Science Boston

Halloween-themed weekend at Museum of Science Boston offers drop‑in activities, design challenges, live presentations, and a member‑only raffle; costumes encouraged.

2 PM – 3:30 PM·Connolly, Jamaica Plain · Boston

Treats, crafts, and costumes at Connolly Branch precede a Centre Street parade ending at Mozart Park with games and additional treats for all ages.

12 PM – 3 PM·Hunnewell Lawn, 125 Arborway, Boston, MA

Sinister plants demonstrate spiky thorns, sticky latex, chemical defenses, explosive seed bursts, and black‑light glow on Hunnewell Lawn, with a storytime at 1 pm, all ages.

11 AM – 2 PM·Powisset Farm, 37 Powisset Street, Dover, MA 02030

Trick-or-treating at Powisset Farm kicks off Halloween, all ages.

12 PM·Malden

Costume contest, arts & crafts, face painting, selfie center, games, raffles, and pizza for purchase fill the Salemwood School Fieldhouse.

Hartwell Tavern · Concord

Jack‑o‑lantern‑lit path, colonial music and dancing, and ranger talks on ghost folklore accompany trick‑or‑treat candy at historic Hartwell Tavern — all ages.

3 PM – 4 PM·Auditorium, Central Library, 79 Highland Ave, Somerville, MA, 02143

Costume parade through Central Library auditorium and stacks, followed by a Halloween dance party with desk trick‑or‑treat stations, for ages 3–12.

12 PM·Lincoln

Hayride, carnival games, Trunk or Treat, live music, food, beer, and pony rides fill Pierce Park’s Fall Fest; tickets $16, all ages.

10 AM – 3 PM·Institute of Contemporary Art Boston

Play Date: Free Family Art Day at the Institute of Contemporary Art Boston — free, all ages.

10:30 AM – 12 PM·Boston Nature Center and Wildlife Sanctuary , Mattapan

Nature journaling in the Wild (Boston Nature Center and Wildlife Sanctuary, Mattapan) — all ages.

10:30 AM · 1 PM·Puppet Showplace Theater · Brookline

Lisa the Wise: a puppet tale of a brave girl confronting Baba Yaga in a wits battle at Puppet Showplace Theater, for ages 4–10.

2 PM – 3:30 PM·Drumlin Farm Wildlife Sanctuary , Lincoln

Milk & Cookies at Drumlin Farm Wildlife Sanctuary, Lincoln — ages 2–10.

10 AM – 5 PM·Institute of Contemporary Art Boston

Watershed Community Event: Veronica Robles Cultural Center Day of the Dead at the Institute of Contemporary Art Boston.