Agua segura para todos

Los faros han ayudado a los marineros a navegar durante siglos. Pero los faros no están construidos como solían ser. Descubra cómo las innovaciones como las computadoras y la energía solar han mejorado los faros con el tiempo. Creado en colaboración con la Institución Smithsonian, este libro de STEAM despertará la curiosidad sobre los temas de STEAM a través de ejemplos del mundo real. Presenta un desafío STEAM práctico que es perfecto para espacios de creación y que guía a los estudiantes paso a paso a través del proceso de diseño de ingeniería. Establezca conexiones...

Learn how technology has improved lighthouses over time with this book that features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.

Land has many different characteristics. It can be hilly, rocky, grassy, narrow, and dry. Or, it can be flat, smooth, sandy, wide, and wet! This Spanish book introduces students to the concept of landforms. With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young students as they improve their reading skills. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage students in learning...

There are many types of weather. Different types of weather make us feel different things. This Spanish book introduces students to the concept of weather. With images that are easy to identify and clear, simple sentence structures, this science reader simplifies scientific concepts for young students as they improve their reading skills. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage students in learning with this dynamic text!

En la voluminosa obra reunida bajo el sugerente título de las NOCHES ÁTICAS se recopilaron múltiples noticias y curiosidades de la cultura clásica: anécdotas de Alejandro Magno, vidas de filósofos, apuntes sobre literatura y lenguaje, antiguas costumbres, hechos portentosos... De la miscelánea casi inextricable que AULO GELIO (s. ii) fue elaborando por las noches durante su estancia en el Ática y que ha cautivado a lo largo de los siglos a autores como Castiglione, Diderot, Borges o Bioy Casares («es uno de los libros que estimulan nuestra inteligencia, nuestra imaginación o...

Describes the importance of farms and the changes that have taken place on farms in the United States from the eighteenth century to the twentieth century.

Imagine being lost and stranded in the desert. Would you know what to do to survive? This useful Spanish-translated nonfiction title explains the important skills needed to survive in the desert. With helpful diagrams and images, definitions, tips and instructions, informational text, a bibliography, and a list of other helpful websites, readers can be assured that they will learn about the dangers of heat exhaustion, desert plants that could aid in survival, and other helpful tips in order to survive in an emergency.

Provides a basic introduction to caves, including geographical information and plant and animal life.