In a galaxy very far away, two planets were born. One was watery while the other was hot and arid. On both planets, natives grew more intelligent and as centuries went by, it was inevitable that the two civilizations would find a way to meet.

Explains the stages of the water cycle and how the water cycle impacts the earth's water supply. Includes an activity.

Ages ago, sorcerers of unmatched power sundered a world into four realms—sky, stone, fire, and water—then vanished. Over time, magicians learned to work spells only in their own realms and forgot the others. Now only the few who have survived the Labyrinth and crossed the Death Gate know of the presence of all four realms—and even they have yet to unravel the mysteries of their severed world. . . . In Arianus, Realm of Sky, humans, elves, and dwarves battle for control of precious water—traversing a world of airborne islands on currents of elven magic and the backs of mammoth dragons. But soon great magical forces will begin to rend the fabric of this delicate land. An assassin will be hired to kill a royal prince—by the king himself. A dwarf will challenge the beliefs of his people—and lead them in rebellion. And a sinister wizard will enact his plan to rule Arianus—a plan that may be felt far beyond the Realm of Sky and into the Death Gate itself.

A must-read spin-off of best selling Sci-Fi masterpiece The Incal. Visionary film director and author Alejandro Jodorowsky's returns with a grand-scale space opera about family, sacrifice, and survival told within a universe immense in both scope and originality. Available in softcover for the first time! The Metabarons chronicles the fascinating dynasty of the ultimate warrior. This collection introduces the history of the Metabarons and reveals the origins of their deep-seated principles, their vast wealth, their cybernetic implants, and their most brutal custom: that the only way for a son to become the next Metabaron is to slay his own father in mortal combat. Follow generations of Metabarons as they struggle to overcome the forces amassed against them in a galaxy corrupted by greed, power, and terror.

A murder investigation exposes a labyrinth of intrigue that threatens to turn Ravnica upside down in this epic Magic: The Gathering novel Lieutenant Agrus Kos enjoys his work. A top-notch officer of the city guard, he's been on the force over fifty years. He works alone. And the League of Wojek never had problems with him or his work. Until now. They gave him a partner to train, who promptly got himself killed. And the more he looks into the death, the less he likes it. Something dark is moving within the guilds of Ravnica.

Discusses the life cycle of a plant using the sunflower as an example.

Clinical practice related to sleep problems and sleep disorders has been expanding rapidly in the last few years, but scientific research is not keeping pace. Sleep apnea, insomnia, and restless legs syndrome are three examples of very common disorders for which we have little biological information. This new book cuts across a variety of medical disciplines such as neurology, pulmonology, pediatrics, internal medicine, psychiatry, psychology, otolaryngology, and nursing, as well as other medical practices with an interest in the management of sleep pathology. This area of research is not limited to very young and old patientsâ€"sleep disorders reach across all ages and ethnicities. Sleep Disorders and Sleep Deprivation presents a structured analysis that explores the following: Improving awareness among the general public and health care professionals. Increasing investment in interdisciplinary somnology and sleep medicine research training and mentoring activities. Validating and developing new and existing technologies for diagnosis and treatment. This book will be of interest to those looking to learn more about the enormous public health burden of sleep disorders and sleep deprivation and the strikingly limited capacity of the health care enterprise to identify and treat the majority of individuals suffering from sleep problems.