December 1, 2007
1 min read
Add Us On GoogleAdd SciAmPuzzle: In Boxes
Our year-end crossword challenges your knowledge of science. Try the printed puzzle or a harder version.
By Patrick Merrell
On supporting science journalism
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The atomic symbols on the puzzle page are all you need to fill in the highlighted squares. Some appear in the grid more than once. The 12 highlighted answers relate to articles that appeared in Scientific American in 2007—one for each month.
Click here for PDF containing the original puzzle
Click here for PDF containing the hard puzzle
Click here for PDF containing puzzle solution
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