- United States Department of State
820 Products found
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Offers experiments and activities using the properties of light and optics.Added April 23, 2014 - This item has been added.
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Babies crying, school bells ringing, cars roaring by, the ding signaling that a new text message...Added April 23, 2014 - This item has been added.
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We all learned that the ratio of the circumference of a circle to its diameter is called pi and...Added April 23, 2014 - This item has been added.
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We have long lorded over the ocean. But only recently have we become aware of the myriad...Added April 23, 2014 - This item has been added.
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How did Martin Luther King Jr.'s birthday become a national holiday? Why do we exchange presents...Added April 23, 2014 - This item has been added.
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Arab Americans are one of the most misunderstood segments of the U.S. population, especially after...Added April 23, 2014 - This item has been added.
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Prior to the 1960s, Andrew Wyeth enjoyed a stellar reputation as a rising star in the art world....Added April 23, 2014 - This item has been added.
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Edward O. Wilson has distilled sixty years of teaching into a book for students, young and old....Added April 23, 2014 - This item has been added.
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"Let your social and environmental conscience be your guide" can be a successful and durable...Added April 23, 2014 - This item has been added.
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Offers activities and experiments using forces and motion.Added April 23, 2014