Red Kangaroo is having a fun day at the beach! She loves watching the waves go up and down, but, suddenly, she has a question: Do the waves ever stop? Dr. Chris has the answer-not only do waves never stop, but there are all kinds of waves around us! Discover all the waves you can and can't see, plus the waves you can hear! In this new series, Chris Ferrie answers all the questions Red Kangaroo has about what things are made of and how things work using real-world and practical examples. Young readers will have a firm grasp of scientific and mathematical concepts to help answer many of their "why" questions.