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Explores The First Settlements That Were Formed In America, Discussing The Explorers That Made Them Possible And The Reasons For The Colonization.

El sentido del oído es muy importante para la supervivencia de los animales. Provee información vital a los animales que los ayuda a encontrar comida o a escuchar a los depredadores que están listos para atacar. Esta continuación del libro premiado de Mary Holland, de la serie Anatomía de los animales y sus adaptaciones, presenta una amplia variedad de orejas de animales y cómo estos las utilizan. ¿Sabías tú que algunos animales tienen los oídos en las patas? Al igual que los ojos, bocas, patas y colas presentados en libros previos, las orejas de los animales tienen una amplia...

Teach students about the years of change and reform between World War I and World War II. With this Spanish-translated book, readers will learn about events such as the Harlem Renaissance, suffrage, the stock market crash on "Black Tuesday," and the Great Depression. Primary source documents and images, and other engaging features, aid students in understanding the social studies content.

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.