The USA Science & Engineering Festival will be held at the Walter E. Washington Convention Center in Washington, DC, on Saturday, April 28, and Sunday, April 29. NSPE is a festival partner and will have a booth featuring an engineering activity, "Pop Fly: Catapults in Action!", where kids and parents can build catapults for launching ping pong balls while learning about engineering design and simple machines. The festival has gained the support of the President and has an honorary congressional host committee of 22 senators and 73 representatives.