When: Mon., July 15 and Wed., July 17 2013
Representatives of the Children's Museum Tucson engage kids in messy experiments that encourage them to create and test their own hypotheses, from 12:30 to 1:30 p.m., Monday, July 15. Mad Science presents "Science Spectacular: Spin, Pop, Boom!" from 3 to 4 p.m., Wednesday, July 17. Tickets are distributed, free, on a first-come, first-served basis to those present a half-hour before the presentation.