El cerebro (Brain)

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

What does this Spanish-translated book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this Spanish-translated book to learn about solids and how they are different from liquids and gases. This 6-Pack includes six copies of this title and a lesson plan.

Read Along or Enhanced eBook: From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists! Readers will discover these curious places--and more!--as they move through this fascinating, Spanish-translated nonfiction title. This mysterious book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index.

An incessant journey through the imagination that forms in the world of a child when immersed in letters, words and books. A small girl walks among the words that form the classic childhood stories to tag along with a boy, so he can enter into the woods of imagination and provoke the pleasure for reading. With a poetic and evocative language, the authors make a profound reflection on the importance of reading in the formation of an individual.

Hasta hace pocos años, el oso panda era desconocido fuera de China y el Tibet, sus hábitats naturales. Pero desde que se logró su aclimatación en algunos parques zoológicos, se ha convertido en uno de los animales más queridos por los niños. En este volumen, conocerás cómo vive en libertad, alimentándose exclusivamente con brotes tiernos de bambú, cuya escasez es una de las razones de que el oso panda necesite de la protección del hombre para sobrevivir.

(back cover) Hablemos de esto! A menudo, los ni os demasiado tmidos tienen preocupaciones y se sienten incomprendidos. ERES T?MIDO? ayuda a ni os y ni as a comprender que la timidez puede vencerse de muchas maneras. Ning n ni o debiera avergonzarse por ser tartamudo o por enrojecer cuando se le hace una pregunta. Todo lo que necesitan es aprender a enfrentar la situaci n adecuadamente. ERES T?MIDO? explica a los ni os que su timidez ir y(c)ndose poco a poco siempre que sigan tratando de expresarse ante los dem s."

He aquí una excelente colección de las denominadas “frases y citas célebres”, supuestas o no, pronunciadas en la más diversas épocas y países según la tradición, por personajes en general importantes (de aquí el epíteto aplicado a las frases y citas) como emperadores, reyes, escritores y artistas. Al no existir la tecnología actual han sido conservadas desde hace mucho tiempo por tradición oral y escrita en documentos antiguos. Es imposible aseverar la autenticidad de todas, pero como dice el refrán italiano: “si no son ciertas, están bien encontradas”.