Take an in depth look at mathematics in this science encyclopedia.
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Find research projects and fun science experiments in this science encyclopedia.
In graphic-novel format, this book chronicles the dust storms which plagued the plains states from 1930 to 1939 while depicting one family's efforts to escape the devastation and start a new life in California.
Eco-friendly energy is explained. The most current information is provided while establishing the understanding that it does not take much to make the world a better place.
One of the most sacred yet volatile countries in the world is Israel. Its history helps the reader to understand the current crisis it faces.
