From the safety of Memorial Field (diagonally across the street from the Library) we’ll be making and launching our own homemade bottle rockets using and comparing different propulsion methods! (Program will run until supplies run out.) **Raindate scheduled for the following Sunday (July 21st, from 2 - 3 pm).**Sponsored by the Friends of the Needham Public Library, in support of A Universe of Stories Teen/'Tween Summer Reading Program.