Exploration Place is Wichita's main hands-on science museum, set beside the Arkansas River near the Keeper of the Plains. Exhibits change, but the museum is especially useful for families, with interactive galleries that give children room to experiment while still offering enough for adults to browse.
Its riverfront location makes it easy to combine with a walk to the nearby confluence and public art around the Keeper of the Plains. Check the current exhibition schedule before going, since travelling shows can change the value of a visit.