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  1. Leroy Hood Word Find

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  2. Earth

    Ash blast

    Tiny particles ejected from a 2010 volcanic eruption pose big problems.

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  3. Science & Society

    Scientist profile: Leroy Hood

    The inventor of the DNA sequencing technique, and Albert Lasker Awardee, embarks on the next big challenge.

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  4. Book Review: Science Fair Season

    Review of Science Fair Season: Twelve Kids, a Robot Named Scorch . . . and What It Takes to Win.

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  5. Fossils

    Dangerous dinos in the dark

    Eye fossils reveal predatory dinosaurs’ preference for hunting at night.

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  6. Environment

    Busy bacteria leave big mark

    Earth’s earliest life-forms built mounds on an Antarctic lake bottom.

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  7. Computing

    Watson a game-changer for science

    Supercomputer outsmarts humans in historic Jeopardy! competition.

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  8. Watson Game-Changer

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  9. Teacher’s Questions for “Watson a game-changer for science”

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  10. Help your child with science fair projects

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  11. The dark side of the universe Word Find

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  12. Teacher’s Questions for The Dark Side of the Universe

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