Day campers designed bottle rockets with the help of Boeing engineers. Then, Franklin institute staff members filled the empty soda bottles up with water and pumped air into it, and then it was liftoff.
Philip Mouser, 8, of Haverford, was proud of his group's creation and is learning a few things too.
"The Apollo 11 is one of the first to be on the moon," he explained.
An Apollo 11 documentary is being shown over the summer in the museum's Imax theater.