Mathematicians say that symmetry has to be identical parts, but nature is never truly identical. However it is far more interesting than geometric shapes! Reading this book, children will become aware of the balance of things in nature. They will delight at amazing photographs of butterflies, beetles, leaves and flowers, fruit, sea creatures, and children. This book will show how a person with arms outstretched has five-fold symmetry like a sea star, and if you drew a circle around his or her body in that position, the navel would be at its center.
This engaging book looks at human time as well as how time passes in nature. How do animals and plants sense changes in time? What changes do we see in nature throughout a day, month, and year?
This simple book uses wonderfully appealing images in nature to teach children about left and right, on and under, far, near, and beside, inside and outside, and more.
In this beautifully photographed book, Bobbie Kalman takes children on a tour of different coasts, where they can ride some breathtaking ocean waves or meet underwater animals that live in nearby coral reefs. Children will also be introduced to some amazing coastal cities and learn about famous coastal rock formations.
Young readers will be fascinated to learn about how mountains are created and change. Through breathtaking photographs, they will wonder at Earths majestic mountains and meet some of the people and animals that live in the often-harsh environment so high above the ground.
Why do people need rivers? What causes rivers to flood? These are just a few of the questions answered by this fascinating introduction to rivers.
Amazing photographs give young readers a fun-filled look at what makes Earth so beautiful. Topics include what are landforms, how different landforms are created, a look at land-shaperswind, water, fire, and ice, different kinds of erosion, how erosion shapes the land, and how some animals form islands.