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Science News Challenge

4:05pm, December 15, 2004

Every word required for this puzzle appeared in a Science News article during 2004.

If you need a hint, check the print article by going to the volume and page number listed after each clue or find the online version of the article by clicking on the link. An asterisk indicates that the article is available free to all visitors to Science News Online. Subscribers who have registered and signed in have access to all the a

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