Visit us Professor Nitrate's Mad Lab The Mad Lab is home to Professor Nitrate and a fantastic array of science shows. With various shows throughout the day. There's always something new to learn. The Mad Lab is also home to the Professor's assistants who will be on hand to show you there latest experiments with fun take home experiments on offer. Professor Nitrate science shows take place at 11:40 , 1.40 and 3.40 during our Half Term Events. Please check prior to event the show's will will be performed.