This fall Mad Science of North Boston will offer virtual programs for students in Grades K-5 on a drop-in or subscription basis. There will be 8 weekly classes, 45 minutes each, on Tuesdays (September 29-November 17) at 5PM, Wednesdays (September 30-November 18) at 4PM, or Thursdays (September 17-November 5) at 3:30PM. The cost is $20 for one class, $60 for four classes, or $100 for eight classes.