Teens are invited to eliminate the mystery in chemistry! Is it a chemical or physical change? You decide as you explore one of the most exciting and fundamental sciences! Watch as sand floats on top of water and take home your very own crystal garden! For middle and high school students. Presented by Mad Science Milwaukee in the Irvin L. Young Memorial Library Community Room on Tuesday, February 15th at 6:00 p.m. Registration is required! Please register to participate at whitewaterlibrary.org by February 7th!