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Cover image for Crop Circles

Crop Circles

by Kraig Helstrom
ebook
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The first shapes found in crop fields were circles. Since then, people have discovered more complex designs. Where do these designs come from? Are they messages from alien visitors, or are they nothing more than pranks created by humans? This title will explore the history of crop circles and look into whether or not some could be of alien origin.

Formats

  • OverDrive Read
  • PDF ebook

subjects

Languages

  • English

Levels

  • ATOS Level:4.4
  • Lexile® Measure:780
  • Interest Level:4-8(MG)
  • Text Difficulty:3-4