Meet Cassie, a curious six-year-old who loves asking interesting questions! When her family heads to Cronulla Beach for an adventurous day, Cassie's wondering mind turns an ordinary trip into an exciting journey of discovery.Why can people move but not trees? Why does everything fall down? Why do roadside trees seem to run backward when you're in a moving car? With help from her patient mum, Cassie explores the answers to these big questions-and learns about the fascinating "Walking Palm," feels gravity through bunny hops, and discovers the magic of relative motion.Along the way, three-year-old brother Caleb learns about distance, time, and speed, while Cassie uses skip counting to figure out when they'll arrive. At the beach, the children discover that pushing the sand makes the sand push back, and when a rainbow appears in the sea spray, they learn how white light hides all the colors inside it.Throughout their adventure, Mum shares stories of Sir Isaac Newton-a man who figured out amazing things simply by staying curious and thinking hard."If others would think as hard as I did, then they would get similar results." - Isaac NewtonInspired by Newton and Einstein's "passionate curiosity," Cassie discovers that asking questions is the key to understanding our wonderful world.Perfect for ages 4-8 Introduces physics concepts through storytelling