- United States Department of State
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Math and physics often go hand-in-hand. Math and measurements have even played a big role in...Added April 23, 2014 - This item has been added.
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Readers will learn what makes a robot work, then design, build, and program their very own robot....Added April 23, 2014 - This item has been added.
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Help students hit a home run on their science fair project or science test. Readers will learn...Added April 23, 2014 - This item has been added.
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Do the properties of metal change when heated? Why do some objects float in water while others...Added April 23, 2014 - This item has been added.
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Unlock the secrets of circuits, batteries, and magnets. Readers will learn all about current,...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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Building on the progress of those who have come before, women in the last two decades of the 20th...Added April 23, 2014 - This item has been added.
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The private sector increasingly has been developing programs and initiatives around corporate...Added April 23, 2014 - This item has been added.
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A thought-provoking investigation of an urgent issue facing American communities today, Edward C....Added April 23, 2014 - This item has been added.
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This book examines the travel and tourism industry in the United States which are critical to the...Added April 23, 2014