If you are looking for a summer camp for your child that is science related I have included some links to programs that I know are great. If you have any questions about any of these (or know of others I should add to the list) let me know.
The Academy of Natural Sciences
The Franklin Institute
Briar Bush Nature Center
Riverbend Environmental Education Center
Schuylkill Center for Environmental Education
Mercer Museum (Robotics)