See the new 4,000 terms, four-book bio-series, here. Also, check out the expanded, 3-book chemistry series for kids, teens, and adults.
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Man against machine.
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Who's smarter?
Search bots find answers.
What was the question?
Did the robots show smart clues?
You be the judge.
How? 1) Inspect the search results. 2) Guess the search key. 3) Beat the timer.