Proyectos reales para explorar la Primera Guerra Mundial y los años 20 (Real-World Projects to Explore World War I and the Roaring ’20s)

Before there was the U.S. Constitution, there were the Articles of Confederation. Readers discover the story behind the first written constitution of the United States—from the factors that inspired its creation to the reasons why it was replaced. The detailed main text is enhanced by informative sidebars and graphic organizers. Historical images, including relevant primary sources, allow readers to immerse themselves in this historical period. Readers are given the chance to thoroughly examine elements of the original document, making them feel like true historians. They’re sure to enjoy ...

When we look up at the night sky you can see millions of stars, but what do you think we could see in space if we left Earth? If we could hop into a special ship and blast off, traveling billions of miles away from Earth, we’d see the Milky Way galaxy. In this book, readers take an incredible journey through that galaxy, exploring the universe and learning how it was formed and what will one day happen to these enormous groups of stars. From mysterious dark matter to the black holes at the center of galaxies, readers will also dive into the mysteries of the universe scientists have spent...

Una guía optimista para cuidar y proteger nuestro planeta. Nadie quiere pensar en la basura (normal, da asquito). Pero aunque no te des cuenta, los desechos ya forman parte de nuestras vidas. ¿De donde sale la basura y dónde acaba? ¿Cuánto tarda en descomponerse? ¿Y qué podemos hacer para ayudar a nuestro planeta? Prepárate para cambiar cómo ves los residuos y cómo luchas contra ellos desde casa. Prepárate para ayudar a tu planeta.

Este libro pretende responder clara y brevemente a la pregunta sobre cómo debe vivir un cristiano y, también, a la cuestión sobre con qué medios cuenta para conseguirlo. Solo aceptando la ayuda de la gracia de Dios y de los sacramentos se puede afrontar debidamente la moral cristiana. Con esa ayuda, además, la persona humana es capaza de entender el valor y la grandeza de una vida conforme al ejemplo y las enseñanzas de Jesucristo. Se ha redactado en forma de manual y se ajusta a la programación de la Conferencia Episcopal Española para obtener la DECA (Declaración Eclesiástica de...

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...

Unexpected occurences have always caused panic, but explorers and scientists seek to find answers and explanations.