Providing theoretical information on an asteroid whose collision with Earth sixty-five million years ago may have resulted in the extinction of the dinosaurs, a scientific guide considers a second possible asteroid collision.
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Grade 5-7?Of all the theories about dinosaur extinction, the giant meteorite scenario?with its visions of a titanic explosion, huge ocean waves, months or years of darkness under planetwide clouds of dust, and drastic climatic changes?is certainly both the most exciting and the easiest to understand. Vogt describes the 1973 discovery of the K-T boundary, a thin band of 65-million-year-old sedimentary rock found in several places around the world, with different fossils above and below it. The subsequent search for a crater of proper size and age pointed up the fact that our planet has endured major-league collisions several times in the past?and could at any time in the future, too. The author continues with a discussion of the rather desultory search for likely candidates, known as near-Earth objects. He barely mentions competing theories or the objections to this one, and the narrative is padded fore and aft with dramatizations, but the presentation is clear, organized, and illustrated with realistic paintings and large, full-color photographs. A brief but wide-ranging book that deserves a place in both large and small collections.?John Peters, New York Public Library
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Gr. 4-6. The slight sensationalism of the title is reflected in the fictionalized beginning and ending chapters of the book. The initial drama concerns a little duck-billed dinosaur that is about to be attacked by a Tyrannosaurus rex, when the shadow of a huge asteroid distracts T. rex and saves the day . . . temporarily. The last chapter, called "A Glimpse of the Future," though it's written in the past tense, reports on a mission in space to deflect the direction of an asteroid that's on course to collide with Earth. Sandwiched between these stories, which one can only hope children will recognize as fiction, is a clear, readable account of the theory that dinosaurs died out as the result of an asteroid collision 65 million years ago. Vogt ably describes scientists' worldwide search for a likely crater and discusses the possibility of another large asteroid impact on Earth, though readers may want more information than they'll find here. A flawed but still intriguing presentation of space collisions as well as their possible once-and-future consequences for life on Earth. Glossary; suggested reading. Carolyn Phelan
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Book Description Millbrook Press, 1994. Book Condition: Fair. Former Library book. Shows definite wear, and perhaps considerable marking on inside. Bookseller Inventory # GRP9539344
Book Description Millbrook Press, Incorporated. Library Binding. Book Condition: Very Good. Ex-Library Book - will contain Library Markings. Book shows a small amount of wear - very good condition. Bookseller Inventory # G1562944487I4N10
Book Description Millbrook Press. Library Binding. Book Condition: VERY GOOD. Light rubbing wear to cover, spine and page edges. Very minimal writing or notations in margins not affecting the text. Possible clean ex-library copy, with their stickers and or stamp(s). Bookseller Inventory # 2749044678
Book Description Millbrook Press. Book Condition: Fair. Acceptable condition. Former Library book. Bookseller Inventory # G07A-00231
Book Description Millbrook Press, 1994. Library Binding. Book Condition: Used: Good. Bookseller Inventory # SONG1562944487