Jen Green

"In this book, young readers will learn about the diet, life cycle, behavior and habitat of moray eels."--

"In this book, young readers will learn about the diet, life cycle, behavior and habitat of California sea lions."--

Describes the physical characteristics, natural habitat, behavior, diet, and world distribution of dolphins.

How do we know that the Sun is at the center of our solar system? This scientific theory is know as heliocentrism. This fascinating book looks at the historical controversies that surround the theory of heliocentrism and tells the stories of the scientists who worked on the theory. It also examines how the theory of heliocentrism was arrived at, how it was tested, and what impact the theory has had on our understanding of science today.

Describes the history of the polar peoples, how they live and work, and the seasons and geographic features of the lands of the midnight sun.

Profiles female pioneers in the fields of science, technology, architecture, and mathematics, tracing their backgrounds and world-changing contributions.

Presents an introduction to the physical characteristics and habits of African elephants and Asian elephants.