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Discusses the physical characteristics of great white sharks that combine to make them such able predators.

La energía es elemento fundamental del mundo contemporáneo, y ha sido la base del desarrollo y dominación del entorno que, nuestra especie, ha venido realizando sobre el entorno y el mundo que nos rodea. Cada nuevo salto en la cultura o en la civilización ha traído aparejado un aumento en la energía (tanto en la producción como en el gasto); por lo tanto, es un componente vital de la sociedad contemporánea. Este libro explora los distintos tipos de energías que existen y se mueve en un amplio abanico porque, entre la energía de los propios músculos y la moderna energía eólica, la ...

This book offers a fun way to learn about 16 of the Prado's most important paintings. Each two-page spread teaches about the artist and the painting and asks readers to locate five objects in the artwork.

Science fairs can be a timely assignment, but they can also be fun, rewarding, and sometimes help you to earn scholarships and prizes, too! The recipe for a great science fair or engineering project has just a couple of simple ingredients: a topic you care about and a question you can test. Learn every step of how to make your next science fair or engineering project a winner by following the detailed instructions, helpful hints, and design information in this title. So, don’t be scared, be prepared, and you are sure to have science fair success! This book allows students to understand how...