HSci2010 7 th International Conference Hands-on Science Bridging the Science and Society gap July 25 - 31, 2010 - Greece The University of Crete campus at Rethymno http://www.clab.edc.uoc.gr/HSci2010/ Edited by : M. Kalogiannakis, D. Stavrou, P. G. Michaelides The University of Crete