Julie K Lundgren

Presents information about extinction in plant species, looking at natural extinction as well as that caused by human activity and ways that people study and help prevent plant extinction.

Introduces some of the ways that animals that live in climates with cold winters react to the changing seasons, including migration, hibernation or resting without complete hibernation, adopting camouflage, and eating stored food.

Introduces photosynthesis, the process by which plants and kelp use the energy from the sun to turn water and carbon dioxide into sugar to feed themselves, with oxygen released into the air, and explains how this makes possible all other life.

Looks at the ways that animals and plants live together in a balanced way in distinct ecosystems, as well as the ways that human activity can threaten the balance of those systems.

Illustrates how adaptations have changed animals' looks and actions and ultimately contribute to their survival.

"Young readers will learn what electricity is, where it comes from, and how it is produced and used in our homes and businesses. Words like energy, circuit, and conductor, are clearly explained."--

"It moves, it freezes, it melts. Kids find out that water takes on different forms and that it plays an important role in supporting life on Earth. Includes the water cycle."--

"STEM fields are increasingly important today and into the future. People who focus their education on STEM can choose from a wide range of exciting, in-demand careers. This book will introduce students to the importance of the problems our environment faces and the scientists, engineers, and other workers who have made careers trying to correct those problems. Each environmental STEM career is highlighted with the education needed to obtain these...

Introduces the life-cycle of the sunflower, discusses products that come from them, and describes how farmers harvest the seeds.