What is the sound barrier? What is snot made of? Why do we yawn? Curious kids want to know, and they will get the answers to these questions and many more in this exceptional illustrated Q&A book. Questions from many branches of science, including chemistry, physics, biology, geology—are answered in a fun, kid-friendly way and accompanied by quirky cartoon illustrations that will entertain readers and help them remember important facts • 80 pages of educational, science-related questions and answers for kids ages 7 and up • Fun illustrations that engage readers while helping them learn • Educational content reviewed by a science expert