Photo Credits
Pages 6 (bottom) and 7: David T. Schaller; 9-10: WGBH Educational Foundation, 2009; 22 (bottom): Mike Strasser; 23: Becky Griffin; 44 (bottom) and 45: Science Museum of Minnesota; 50: photos by Amy Snyder, © Exploratorium, www.exploratorium.edu; 51: © Exploratorium, www.exploratorium.edu; 53-54: St. Louis Science Center; 57 (bottom) and 58: Images courtesy of Twin Cities Public Television, Inc., and DragonflyTV; 69 (bottom), 70, and 71: © Exploratorium, www.exploratorium.edu; 84 (bottom) and 85: photos by Deborah Perry, from Perry, Deborah, What Makes Learning Fun?, forthcoming, AltaMira Press; 98: The Washington Post; 123 and 125: Courteney Coolidge; 130: Eric Workman, Museum of Science, Boston; 133-134: Native Science Field Centers; 144 (bottom) and 145: © Project Exploration; 150: Rob Schaufele, Road Watch in the Pass project; 154 (bottom): Lara Rodriguez; 171-172: The Gulf of Maine Research Institute; 175: Pacific Science Center; 178 (bottom): Sydnie Moore.