There are five nutrient cycles in the natural world, and this book will explain what these are. Learning something new about the natural world will help shape awareness that will hopefully lead to a proactive environmental campaign. This book is perfect for third graders because of the age appropriateness of information presentation. Grab a copy today! Baby Professor showcases a collection of subjects that are educational for kids to help them learn how to do something themselves, exactly how something is done or how it came about. Children love to learn through attractive visuals and Baby Prof. is ideal to get your child the head start he or she needs for the future. Our Motto - "Learning is Fun, so let's Make it Fun to Learn".