Trocaire College, 360 Choate Ave., will host two open houses. The first, geared toward high school students, will be held Saturday and begins with registration and breakfast at 10 a.m. and continues until 12:30 p.m. Another open house, for adult and transfer students, will be held from 5:30 to 7:30 p.m. Tuesday. Preregister online at www.trocaire.edu. For more information, call 827-2545.
Park School, 4625 Harlem Road, Snyder, will host two Cornell University workshops. Afterschool Investigators, for after-school providers and youth program leaders, will be held from 8:30 a.m. to 1:30 p.m. Friday. The workshop will focus on getting kids outside for fun, hands-on science. The Habitat Connections Teachers Workshop, geared toward fourth- to eighth-grade teachers, will help teachers lead students in citizen science and investigations. To register, visit www.birdsleuth.org.
The Buffalo Philharmonic Orchestra will present the Symphonic Spooktacular at 2:30 p.m. Sunday in the Mary Seaton Room at Kleinhans Music Hall, Symphony Circle. Kids are invited to wear their Halloween costumes. Visit www.bpo.org for more information.