Come down to the Pennsylvania Convention Center in Philadelphia on May 16 to meet Science Cheerleader Hilary and Science Cheerleader/SciStarter founder Darlene! #GirlPOP2015 will bring in over 3,000 girls and adults for this all-women event focusing on real-life topics affecting women and girls worldwide. Hilary and Darlene will lead a Science Cheerleader session for girls in grades K-12 for an interactive science-fueled experience!