8Discover the beautiful science of roots! Roots grow down into the ground and supply food to the whole plant. Some roots also become food for people. See what roots look like and how they work. Through full-color photos and simple, easy-to-follow text, this nonfiction book introduces emergent readers to the basic science of roots. All Pebble Plus books align with national and state standards and are designed to help new readers read independently, making them the perfect choice for every child.