Cruzar el océano: La inmigración a California (Crossing Oceans: Immigrating to California)

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Atractivo álbum de divulgación científica dirigido a niños y niñas de entre 6 y 9 años que destaca por la calidad de sus ilustraciones y la accesibilidad de la información. Un viaje al pasado remoto de la Tierra. Quizá los trilobites no sean tan espectaculares como los grandes dinosaurios. Sin embargo, estos pequeños seres prehistóricos -los cuales vivieron durante el periodo Cámbrico, es decir hace 542 millones de años-, tienen mucho que decirnos sobre el pasado remoto de la Tierra y sobre los seres vivos en general. Su fascinante anatomía, por ejemplo, guarda curiosas...

The story of British soldiers killing five civilians in Boston and injuring many others during the spring of 1770. In graphic novel format.

NASA wants to send humans to Mars within the next 25 years, but before that can happen, they must plan and prepare. This Spanish Interactiv-eBook will engage students as they read about STEM topics, building both their literacy skills and math content knowledge. With a focus on NASA's Mission to Mars, students will learn problem solving through the use of real-world examples. Captivating images, practice problems, and mathematical charts and diagrams help develop students' problem solving skills. Text features such as a glossary, index, and a table of contents increase understanding and build ...