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This fascinating book explains the patterns and cycles created on Earth by the influence of the Sun and the Moon, as well as by the Earth's magnetic poles and the planet's rotation on an axis. Informative text, vivid photographs, and detailed diagrams help explain patterns such as day and night, the four seasons, the lunar cycle, the rise and fall of tides, and weather cycles.
After discovering the first key in the wreckage of a crashed Builder ship, Skyler Luiken and his crew follow the migrating aura towers in search of the four remaining relics. But time is running out: the team learn that the next Builder event will be the last, and one of the objects has already fallen into dangerous hands... Will the survivors finally reveal the Builders' plan?
Essential to life, water can be found in different forms all around us. This important book explains how the Earth's supply of water moves from bodies of water, to the atmosphere, and to land in a process called the water cycle . Accessible text and detailed images help explain such processes as transpiration, evaporation, condensation, and precipitation, as well as the important roles of sunlight and gravity in the water cycle. Feature boxes highlight examples of the ways in which human activity creates shortages of clean water and interferes with the water cycle. Readers are encouraged to find ways to take action and find solutions.
Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! Igneous rocks, sedimentary rocks, and metamorphic rocks make up the three main types of rocks. But did you know that rocks are constantly being created, destroyed, and created again? Or that rocks are changed by weather, erosion, heat, and pressure? See the rock cycle in action in this fascinating book.
After aliens constructed an elevator from Darwin, Australia into space, humanity established orbital colonies along the elevator's cord. Years later, those outside of the machine's protective aura were wiped out by a mysterious plague. When the elevator's virus shield begins to break down, a scavenger and a scientist must unravel the mystery of the failing alien technology to save what's left of the world.
Provides environmentally friendly science projects about the Earth's cycles.
Developing Ecological Consciousness is a unique introduction to environmental studies. In Chistopher Uhl's view it is time to acknowledge the ways that our cultural conditioning leads to separation from self, other, and Earth. This book charts a three-step path for healing this separation, first, by revealing that Earth is our larger body; second, by detailing the sickening state of our Earth body; and, third, by offering the tools necessary for healing both ourselves and Earth.
The Exodus Towers features all the high-octane action and richly imagined characters of The Darwin Elevator—but the stakes have never been higher. The sudden appearance of a second space elevator in Brazil only deepens the mystery about the aliens who provided it: the Builders. Scavenger crew captain Skyler Luiken and brilliant scientist Dr. Tania Sharma have formed a colony around the new Elevator’s base, utilizing mobile towers to protect humans from the Builders’ plague. But they are soon under attack from a roving band of plague-immune soldiers. Cut off from the colony, Skyler must wage a one-man war against the new threat as well as murderous subhumans and thugs from Darwin—all ...
The Earth as Transformed by Human Action is the culmination of a mammoth undertaking involving the examination of the toll our continual strides forward, technical and social, take on our world. The purpose of such a study is to document the changes in the biosphere that have taken place over the last 300 years, to contrast global patterns of change to those appearing on a regional level, and to explain the major human forces that have driven these changes. The first section deals strictly with the major human forces of the past 300 years and the second is a detailed account of the transformations of the global environment wrought by human action. The final section examines a range of perspectives and theories that purport to explain human actions with regard to the biosphere.
Nitrogen is a common element found as a gas in the air we breathe as well as in other forms in water and soil. Nitrogen is essential for all life on Earth. This informative book explains how the Earth's supply of nitrogen moves in different forms in a cycle from the air to the soil to living things. Highly readable text and supportive images help explain such processes as fixation, nitrification, and dentrification, as well as the important role of bacteria in the nitrogen cycle. Feature boxes highlight examples of the ways in which human activity, such as adding more nitrogen to the soil to make plants grow faster, releases harmful greenhouse gases into the air interfering with the nitrogen cycle. Readers are encouraged to find ways to take action and find solutions.