DVD. Enjoy the second volume of the second season of The Cat in the Hat Knows a Lot About That! The Cat in the Hat Knows a Lot About That! Follows the adventures of 6-year-old best friends, Sally and Nick, as they are whisked off on extraordinary voyages of scientific discovery with the Cat in the Hat. Thanks to the Thinga-ma-jigger and our friends, exploring has never been more exciting! In this volume set, kids will learn the answers to questions like what is the Earth s atmosphere, why do we need bones, and how is paper made. The discoveries don't end there! We learn how polar bears survive the arctic winter, how our ears work and so much more! So let's go, go, go, go on an adventure, we're flying with The Cat in the Hat today!