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Bioed Online features lessons on the water cycle and global warming, the X chromosome, sleep and daily...
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Science Education includes booklets on cells, genes, health, chemistry, and medicines. The booklets...
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![By educating people on how influenza could spread, public health officials hoped to help people avoid it. [Credit: National Library of Medicine]](http://www.free.ed.gov/images/resources/pandemic.jpg)
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The Great Pandemic tells the story of the 1918 outbreak of the Spanish flu, which killed an estimated...
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