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Probing the unknown

Stephen Tchudi

1990146 pagesabout 2–3 hours
1990
first published
  • 1990Charles Scribner's Sons Books for Young Readers · 146 pages · ENGISBN 9780684190860

Examines the ways in which people have sought to probe the unknown with activities that answer questions and puzzlements.

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Written forMiddle grade
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