¡Sin resolver! Lugares misteriosos

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.

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.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies! This 6-Pack includes six copies of this title and a lesson plan.

Read Along or Enhanced eBook: Mysterious events occur all over the world. It rains fish every year in Honduras, rocks in Pennsylvania make music, and large drawings can be found on the desert floors in Peru! In this Spanish-translated nonfiction book, readers will learn about these strange phenomena and more curiosities like ESP and crop circles in this baffling and fascinating nonfiction title. Vibrant images and intriguing facts in conjunction with a glossary of terms, informational text, and an index keep readers captivated from cover to cover!

La expedición de Richard Francis Burton a Harar, ciudad de Etiopía a la que ningún europeo había tenido acceso, marca un hito fundamental en el conocimiento del interior de África, al abrir una vía de penetración que en pocos años había de llevar al descubrimiento de los Grandes Lagos, las fuentes del Nilo, y las complejas y fascinantes culturas de los pueblos que habitaban en el corazón del continente africano. Burton, explorador audaz e imaginativo, orientalista de vastos conocimientos y escritor de primer orden, logra que su libro pueda leerse al mismo tiempo como el apasionante...

Un libro ideal para conversar con los niños y las niñas temas de sexualidad con un enfoque integral. Con una mirada actualizada, abierta, directa y clara se abordan temas de sexualidad, género, pareja, intimidad, desarrollo, adopción, familia y reproducción, entre otros.

"Letras de cuento" es una colección ideada para que prelectores y primeros lectores se familiaricen de manera lúdica con las letras. A través de la lectura de divertidas historias -cada una de ellas protagonizada por una letra-, el niño descubrirá de forma muy visual diferentes maneras de representarlas. Cada libro tiene una letra troquelada con la que el niño podrá jugar, y con toda la colección, formar palabras.

In this engaging, Spanish-translated nonfiction book, early readers are introduced to the life cycle of a butterfly. Readers will be captivated by the vivid photographs of the butterfly's life, and informative text. This 6-Pack includes six copies of this title and a lesson plan.