For kids of all ages
Level 5 lets you smash a dummy head with a mallet, okay you get to see how helmets protect your head at impact, but it is cool to smash the head anyways. They have a great exhibit about the local company Stanley Tools in the invention area. Not to be missed is the exploring space area, with the cool loungers that let you watch short films about the universe.
This is great place to go, and a must to check out at some point if you have kids who like science.