"Dig It" Soil Exhibit At The California Museum Friday, January 16, 2015 | Sacramento, CA Listen / download audio Update RequiredTo play audio, update browser or Flash plugin. The California Museum has a national traveling exhibit called “Dig It! The Secrets of Soil.” We’ll talk with Jan Hopmans about some of the fascinating things that soil provides us. We’ll also hear from exhibit director Amanda Meeker about what makes this traveling exhibit worth seeing. LINKS: Dig It! The Secrets Of Soil Symphony of Soils Family Day