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Watch how the butterfly uses its wings to balance on the flower on a windy day. The music is from a…
Tags: nature, habitats
Sep 10, 2010
For a limited time HarperAcademic is sponsoring a free e-book giveaway for educators.
The Boy Who…
Tags: poverty, Africa
Sep 30, 2009
National Geographic's The JASON Project is launching free, downloadable Energy Curriculum for this…
Tags: fossil, nuclear
Jul 13, 2009
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