El magnetismo (Magnetism)

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Newton's laws aren't the easiest science topics to digest. Struggling readers likely find understanding them even harder. This volume breaks down the topics of force and motion to its most basic and understandable parts, perfect to introduce to readers having a hard time or students looking to review for class. Written in succinct language, each chapter contains fact boxes and graphic organizers to aid all readers as they move from speed, to velocity and on.

If asked to define a forest, readers might say, "It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive. 32pp.

Esta historia empieza una mañana de esas en que te aburres más que Spiderman en un descampado. Sabes de lo que te hablo, ¿verdad? Parece mentira que el día comenzara así... ¡y acabara con una de las aventuras más épicas de mi vida! Todo fue muy rápido: ver a ese desconocido entrar en su base secreta, colarme tras él sin ser visto... ¡e inventarme el reto de sobrevivir allí sin que me descubra! ¡A tope de pócimas de invisibilidad! ¡Venga escondites aquí y allá! En el momento me pareció divertido, pero nunca podría haber imaginado la montaña rusa de locuras que se me venía...

Read Along or Enhanced eBook: Introduce readers to some of the most well-known criminals and tyrants of the past with this fascinating, Spanish-translated nonfiction book! Featuring intriguing facts and theories, colorful images, and informational text in conjunction with a glossary of terms, a bibliography, and a list of helpful websites with more information, readers will want to learn all they can about ancient history and the bad guys and gals from the past.

This book looks at the numbers in Spanish. Main text on each page is provided only in Spanish, with simple, labeled photographs providing support. A "dictionary" spread at the end of the book features all the vocabulary words in both Spanish and English, and also includes a pronunciation guide.