¿Por qué hibernan los animales? (Why Animals Hibernate)

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.

Diamonds and salt are both minerals, but diamonds are more rare than salt. Curious readers will learn what physical and chemical conditions must be present for minerals to form. They'll discover how minerals are identified and how they are used in daily life. Informative and interesting text presents readers with this science content in a fun way. A graphic organizer shows how different minerals are identified and fact boxes provide readers with exciting supplementary information.

So you think you're a martial arts master, but do you know the difference between kung fu, kendo, and karate? Students will learn about various martial arts as they practice comparing numbers. This Spanish math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, intriguing sidebars, practice problems, and math diagrams make learning math relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and reading concepts. An in-depth problem-solving...

¿Sabías que Marte parece una estrella roja brillante? A menudo se lo llama el Planeta Rojo. Descubre más cosas en Marte, uno de los libros de Los planetas. Did you know that Mars looks like a bright red star? It is sometimes called the Red Planet. Find out more in Mars, a Planets book.

La figura de Federico García Lorca abarca, tanto en España como en el exterior, mucho más que su literatura. Su poesía, traducida a infinidad de lenguas, recorre paisajes, hurga en tradiciones y denuncia injusticias con la maestría de quien ha sabido utilizar la pluma como pocos, y sus libros continúan leyéndose sin atender al paso del tiempo ni a las arbitrariedades de la moda. En este libro, se ofrecen al lector clásicos lorquianos como el Romancero gitano o el Poema del cante jondo, junto con las dos conferencias pronunciadas por el poeta en la presentación de los mismos, además...

¿Adoptar un dragón mascota O adoptar un unicornio mascota? A los niños les enchant jugar ¿Que Prefieres? con familia y amigos. Este libro de juegos es divertido para todas las edades niños de 6 años, 7 años, 8 años, 9 años, 10 años, 11 años y 12 años