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Rocks are identifiers of Earth. The composition of our rocks are different from those in Mars. Rocks are important pieces that tell scientists about the geology of a certain region. Other pieces of information found in rocks include the abundance or absence of certain minerals... Read Full Overview

In this revised edition of a Baby Professor classic, we'll take a second look at rocks and what we know about them. Complete with age-appropriate texts and appealing images, kids will fall in love at first sight with this supplemental learning tool. Grab a copy in print, hardcover... Read Full Overview