Age range 5 to 9 

Red Kangaroo is playing with her favourite ball — she throws it into the air and it comes back down. 

But what makes this happen? She knows that Dr. Chris will have the answer! Soon, Red Kangaroo learns about force, mass, and acceleration-and that Newton's Laws are at work anytime anything moves! 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.