La fiebre del oro (The Gold Rush)

The London Eye opened on March 9, 2000. Although it hasn't been there long, the London Eye has already become an iconic symbol of London. No trip to London is complete without a visit to the London Eye! Learn about the history and creation of Europe's tallest observation wheel as you build your arithmetic skills! 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, engaging sidebars, practice problems, and math diagrams make learning math relevant and fun. Text features include a table of ...

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...

Our toilets toil away for us every day. Yet, they get little thanks for their hard work! When you think of toilets, you probably picture one in your home. But, toilets can be very different around the world. At first glance, a toilet is a simple device, but they are critical for proper sanitation. There are many people worldwide who do not have access to a toilet. Let's dive into an exploration of the history, importance, and inner workings of toilets! This Spanish book combines math and literacy skills and uses everyday examples of problem solving to teach subject area content. The...

Presents general information about the everyday life of children in Europe, the far north, Japan, India, England, the Middle East, the United States, South America, China, and different parts of Africa.

Summarizes how water changes from a solid to a liquid and back again, and introduces related facts such as that water freezes at thirty-two degrees Fahrenheit and that ice floats.

En El fascinante mundo de... los primates descubrirás cómo y quiénes viven en los árboles o a ras de suelo. Te intrigará el porqué unos viven casi en solitario, en familia o bien forman grandes manadas. Confirmarás que es muy práctico tener una larga cola prensil para colgarse de las ramas. O lo útil de la disposiciópn de los dedos en manos y pies para alimentarse y desplazarse o estar durante mucho tiempo colgado del pelaje de la madre... y muchas cosas más sobre su fascinante mundo.

Aquí encontrarás a los animales más sorprendentes del planeta, ¡prepárate para la aventura! ¿Un ser vivo más ruidoso que un avión al despegar? ¡Eso no existe! ¿Un volador enloquecido que rompe el récord de velocidad de los 100 m/seg? ¡Sólo en el cine! Los seres sobrehumanos que se esconden tras esas proezas son, sin duda, de carne y hueso... Aunque creas que ya lo sabías todo sobre los animales, es muy poco lo que conoces sobre sus superpoderes, pero en Animales superhéroes podrás leer sobre las proezas y también sobre las debilidades y defectos de algunas especies. Además...