9780789178992

Comets

by
  • ISBN13:

    9780789178992

  • ISBN10:

    0789178990

  • Format: Paperback
  • Copyright: 2009-07-01
  • Publisher: Perfection Learning
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Supplemental Materials

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  • The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

Summary

Millions of years ago, a giant meteorite killed all the dinosaurs. Find out how!Will humans all be killed in the same way? Find out what we can do.Is there life on the planet Mars? Scientists think maybe the answer is yes. Find out why. Get the facts.Got that? Then read a scary story about what might happen: "Doom from Space."Finally use the Word Check to make sure you know your comets from your asteroids!

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