Forget “How many licks does it take to get to the center of a Tootsie Pop?” We may never know that one. But at the Modesto branch of the Stanislaus County Library on Thursday, kids answered a less frequently asked question: How far does a marshmallow fly? And to do so, they had fun making little catapults from rubber bands and craft sticks. Kids who missed the session can find several online sources for catapult-building instructions; simply search “marshmallow catapult.” Next week, the final week of summer vacation for many local children, the Modesto library is having Shark Week. “Find the hidden shark and get a prize,” the library’s website says, also promising “fun and informative activities all week long in the Children’s Room.” Visit www.stanislauslibrary.org/tk_kids_events.shtml for information on many children’s activities offered at Stanislaus County Library branches.