Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Describes jet-powered hydroplane boats, including information on their design and speed. Written in English and Spanish.

¡Choque! ¡Mira a ese camión monstruo! Aprenda sobre lo que hacen los camiones monstruosos y cómo funcionan. Esta edición ofrece emocionantes fotografías de color, un glosario de fotos para ayudar a los jóvenes lectores a navegar por el libro y preguntas de pensamiento crítico para ayudar con las habilidades de no ficción en los lectores jóvenes. Crash! Whoa! Watch that monster truck go! Learn about what monster trucks do and how they work. This Spanish-language edition features exciting full-color photographs, a photo glossary to help young readers navigate the book, and...

Jugar con el balón es el juego que más les gusta a los niños incluso hoy en día, porque corresponde a su afán de movimiento, a su afán lúdico. Este libro se ocupa de la primera base y de la formación de base y del entrenamiento con niños de 4 a 14 años. Comprende la edad preescolar (de 4 a 6 años), la edad escolar temprana (de 7 a 9 años), la mejor edad de aprendizaje motor ( de 10 a 13 años) así como la fase de la pubescencia. El libro da indicaciones, explica principios y métodos que faciliten el empleo útil de la multitud de formas de ejercicios y juegos ofrecidos, teniendo ...

Readers are introduced to some of the most well-known criminals and tyrants of the past in this exciting nonfiction reader. 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, this text will make readers want to learn all they can about ancient history and the bad guys and gals from the past. This book has been translated into Spanish.