The Ballard Library (5614 22nd Ave. N.W.) has put together several activities to keep teens busy this summer. Jesten Ray and Lynn Miller, the Teen Librarians at the library, sent us the following information:Friday, July 2 at 3 p.m. – Zinery 101 for Teens: A zine is a self-published magazine. Learn the basics and make your own zine with Lucy Morehouse of Ong Ong Press. For ages 12-18. Limited to 20 teens. Please register with the branch. 684.4089 (ext 3)Wednesday, July 7 at 3 p.m. – Hands-on Henna Workshop for Teens: Become a henna artist! Artist Krysteen Lomonaco shows you how to design and then apply a temporary henna tattoo on yourself. For ages 12-18. Limited to 12 teens. Please register with the branch. 684.4089 (ext 3)Friday, July 30 at 3 p.m. – Robot Challenge for Teens: Explore the world of robotics with educators from the Pacific Science Center! Analyze the features of robots, then program one to maneuver through a simulated hostile environment. Compete in teams against others to be the robot champion. For ages 12-18.