How much do kids love to learn? This engaging book provides answers to some of the most interesting and entertaining questions that kids love to ask, like, "How big were dinosaurs?" and "How do fish breathe underwater?" With colorful illustrations and easy-to-understand answers, kids will learn fascinating facts about everything from clocks to roller coasters to hot air balloons.

• 21 answers for 21 questions that kids love to ask
• Look out for more in the series: Why Does The Moon Change Shape?, What Makes a Skunk Stink?, Where Do Dinosaurs Get Their Name?, and Where Do Dinosaurs Get Their Names