Folks who remembered to save a snowball from this winter can toss the icy relic into the river using a snowball slingshot. Other solstice-themed activities include two live science demonstrations to help beat the heat, snowflake make-and-takes, an ice moon activity in the Buhl Planetarium and snow cones available for purchase. All-ages welcome.
Where: Carnegie Science Center at 1 Allegheny Ave. (North Shore)
When: June 21, 2017 at 10:00 a.m. to 3:00 p.m.
How much: With a snowball, name your general admission price