La naturaleza de la materia (The Nature of Matter)

Give students insight into the Industrial Revolution, how it influenced innovation and employment in the United States, and how it changed the lives of Americans at the beginning of the 20th century. With this nonfiction Spanish-translated book, readers will learn about assembly lines, patents, labor unions, child labor laws, labor unions, muckrakers, and immigrant and slave labor. Colorful images, supporting text, a glossary, and other features keep students engaged and help them better understand the content.

Read Along or Enhanced eBook: Take a journey into the wild world of reptiles and amphibians! Readers will learn about crocodiles, lizards, snakes, tortoises, and salamanders. Featuring a glossary, index, colorful images and charts, intriguing facts, and clear, informative text, readers will be sure to be enthralled as they move through this engaging, Spanish-translated book.

Mingling reality and fantasy, the author uses Tato the Duck to help youngsters face their fears and emotions in positive ways and figure out their place in the world

Más de 15.000 especies de plantas y animales están en peligro de extinción. Este atlas enciclopédico muestra las razones de esta desaparición y presenta algunas de las medidas que están tomando diversas organizaciones para evitarlo.

All Spanish Prepositions This book is intended to explain how to use the 23 prepositions existing in the Spanish language to students of Spanish as a second language or to Spanish native speakers who want to acquire, refresh or improve their knowledge on this topic. Studying prepositions in any language is one of the hardest tasks because there are several rules to follow as well as some exceptions. The various rule categories are explained for each preposition along with numerous examples. These examples cover different contexts to give the reader multiple usage options of the language...

¿Sabias que a pesar de que todas las cebras tienen rayas negras y blancas cada cebra es única? ¿O, que los leones son parte de la gran familia gato pero no pueden ronronear? Aprende datos curiosos sobre animales salvajes en este libro que ofrece fotografías reales. Los estudios demuestran que los jóvenes aprendiz les resulta mas fácil asociar los animales de la vida real que se muestran en las fotografías que de las ilustraciones. Animales y reptiles en este libro incluyen a la: cebra, león, jirafa, rinoceronte, gorila, elefante, hipopótamo, avestruz, cocodrilo, y el guepardo con...