Learn About Trees - Learn About Series Author:Peter Mellett LEARN ABOUT TREES reveals for young readers the secret life of trees--what really goes on inside the trunk, how leaves make food, when trees first grew on the earth, and more. Includes 19 information sections on the different parts of a tree and their functions, 23 practical projects that help you discover the life-cycle of a tree, and more than... more » 250 illustrations, photos, and explanatory artwork.« less