Kool Rock-Ski is a popular character from the animated television series The Magic School Bus. He is known for his cool demeanor and love for adventure, often engaging in fun activities that teach children about science and the environment. His character embodies the spirit of exploration and curiosity, making learning enjoyable for young viewers. In the show, Kool Rock-Ski often collaborates with Ms. Frizzle and her class, helping them navigate various scientific concepts through exciting field trips. His presence adds an element of excitement, encouraging children to embrace their curiosity and learn about the world around them.