Volcanoes

Author: Jayne Keedle
Publisher: Gareth Stevens
ISBN: 9780836891553
Size: 23.70 MB
Format: PDF, ePub, Mobi
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Volcanoes. Explores the most powerful and unforgettable volcanic events.

Be A Volcanologist

Author: Suzy Gazlay
Publisher: Gareth Stevens
ISBN: 9780836889307
Size: 68.56 MB
Format: PDF, Mobi
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Be A Volcanologist. Provides facts and challenge questions about volanoes, eruptions, lava, and the work done by volcanologists.

Young Children As Active Citizens

Author: Glenda Mac Naughton
Publisher: Cambridge Scholars Publishing
ISBN: 1443814938
Size: 10.82 MB
Format: PDF
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Young Children As Active Citizens. Young Children as Citizens explores how young children (birth to 12 years of age) can and should participate in civic life. It reflects new images of young children as social actors, together with the increased interest in children's rights in the public sphere. The contributors are early childhood researchers, pedagogues, children and policy makers from Australia and Europe. They present a rich diversity of research-based case studies in which policy-makers and educators have listened to young children¹s views on public issues and responded in respectful and ethical ways. Young Children as Citizens is a unique resource for policy-makers, those working in children's services and child advocates. It shows how best to consult young children and it presents a range of arguments that consulting young children about policies and decisions that affect them supports and enhances a vigorous democratic society. Students (undergraduate and postgraduate), teachers and researchers in early childhood studies can use individual chapters of Young Children as Citizens selectively to explore issues of increasing complexity in different courses. The book would be a good set text for Honours and Master's programs that address issues of children¹s rights.

The Way Science Works

Author:
Publisher: Macmillan General Reference
ISBN:
Size: 28.65 MB
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The Way Science Works. Hundreds of illustrations and photographs, accompanied by informative essays by experts in the field, outline a wide variety of scientific concepts, theoretical principles, and technological advances in such fields as medicine, transportation, information technology, and space.

The Way Science Works

Author: Robin Kerrod
Publisher: Dk Pub
ISBN: 9780789485625
Size: 13.65 MB
Format: PDF, Docs
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The Way Science Works. Provides information about and ideas for experiments related to matter, atoms and elements, forces and energy, heat and sound, light and color, and electricity and magnetism.

The Joy Of Science

Author: Richard A. Lockshin
Publisher: Springer Science & Business Media
ISBN: 1402060998
Size: 72.15 MB
Format: PDF, ePub
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The Joy Of Science. This book reveals that scientific logic is an extension of common, everyday logic and that it can and should be understood by everyone. Written by a practicing and successful scientist, it explores why questions arise in science and looks at how questions are tackled, what constitutes a valid answer, and why. The author does not bog the reader down in technical details or lists of facts to memorize. He uses accessible examples, illustrations, and descriptions to address complex issues. The book should prove enlightening to anyone who has been perplexed by the meaning, relevance, and moral or political implications of science.

The Mass Extinction Debates

Author: William Glen
Publisher: Stanford University Press
ISBN: 0804722862
Size: 70.23 MB
Format: PDF, Kindle
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The Mass Extinction Debates. This book examines the arguments and behavior of the scientists who have been locked in conflict over two competing theories to explain why, 65 million years ago, most life on earth—including the dinosaurs—perished.

Study Earthquakes

Author: Suzy Gazlay
Publisher: Gareth Stevens
ISBN: 9780836889314
Size: 13.34 MB
Format: PDF, ePub, Docs
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Study Earthquakes. Provides facts and challenge questions about earthquakes, their causes and effects, and how they are studied and predicted by scientists.

Impact

Author: Gerrit L. Verschuur
Publisher: Oxford University Press
ISBN: 019028370X
Size: 27.58 MB
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Impact . Most scientists now agree that some sixty-five million years ago, an immense comet slammed into the Yucatan, detonating a blast twenty million times more powerful than the largest hydrogen bomb, punching a hole ten miles deep in the earth. Trillions of tons of rock were vaporized and launched into the atmosphere. For a thousand miles in all directions, vegetation burst into flames. There were tremendous blast waves, searing winds, showers of molten matter from the sky, earthquakes, and a terrible darkness that cut out sunlight for a year, enveloping the planet in freezing cold. Thousands of species of plants and animals were obliterated, including the dinosaurs, some of which may have become extinct in a matter of hours. In Impact, Gerrit L. Verschuur offers an eye-opening look at such catastrophic collisions with our planet. Perhaps more important, he paints an unsettling portrait of the possibility of new collisions with earth, exploring potential threats to our planet and describing what scientists are doing right now to prepare for this awful possibility. Every day something from space hits our planet, Verschuur reveals. In fact, about 10,000 tons of space debris fall to earth every year, mostly in meteoric form. The author recounts spectacular recent sightings, such as over Allende, Mexico, in 1969, when a fireball showered the region with four tons of fragments, and the twenty-six pound meteor that went through the trunk of a red Chevy Malibu in Peekskill, New York, in 1992 (the meteor was subsequently sold for $69,000 and the car itself fetched $10,000). But meteors are not the greatest threat to life on earth, the author points out. The major threats are asteroids and comets. The reader discovers that astronomers have located some 350 NEAs ("Near Earth Asteroids"), objects whose orbits cross the orbit of the earth, the largest of which are 1627 Ivar (6 kilometers wide) and 1580 Betula (8 kilometers). Indeed, we learn that in 1989, a bus-sized asteroid called Asclepius missed our planet by 650,000 kilometers (a mere six hours), and that in 1994 a sixty-foot object passed within 180,000 kilometers, half the distance to the moon. Comets, of course, are even more deadly. Verschuur provides a gripping description of the small comet that exploded in the atmosphere above the Tunguska River valley in Siberia, in 1908, in a blinding flash visible for several thousand miles (every tree within sixty miles of ground zero was flattened). He discusses Comet Swift-Tuttle--"the most dangerous object in the solar system"--a comet far larger than the one that killed off the dinosaurs, due to pass through earth's orbit in the year 2126. And he recounts the collision of Comet Shoemaker-Levy 9 with Jupiter in 1994, as some twenty cometary fragments struck the giant planet over the course of several days, casting titanic plumes out into space (when Fragment G hit, it outshone the planet on the infrared band, and left a dark area at the impact site larger than the Great Red Spot). In addition, the author describes the efforts of Spacewatch and other groups to locate NEAs, and evaluates the idea that comet and asteroid impacts have been an underrated factor in the evolution of life on earth. Astronomer Herbert Howe observed in 1897: "While there are not definite data to reason from, it is believed that an encounter with the nucleus of one of the largest comets is not to be desired." As Verschuur shows in Impact, we now have substantial data with which to support Howe's tongue-in-cheek remark. Whether discussing monumental tsunamis or the innumerable comets in the Solar System, this book will enthrall anyone curious about outer space, remarkable natural phenomenon, or the future of the planet earth.