Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of testing. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience and show how testing works in the real world. In this book, a narrator freezes water to make ice and makes sure his process worked. This nonfiction title is paired with the...

Este libro te enseñará a desenvolverte, saber estar y mejorar en tu ámbito laboral, enfocando la vida profesional como un servicio a los demás. Cómo desenvolverse en un nuevo empleo, y cómo dejarlo con elegancia. Qué implica saber estar en un entorno laboral. Cómo ser competente y competitivo, sin pisar a nadie. Cómo confiar en los demás, y que ellos confíen en ti. Por qué la razón de ser de la empresa no es el dinero, sino la suma de compañerismo y emprendimiento. Cómo dejarse enseñar, y estar dispuesto a enseñar. Qué importancia tiene la reputación. Cómo respetar...

Surveys the life of Nathan Hale, a Revolutionary War hero whose service to George Washington as a spy cost him his life.

Una traición y dos guerras devastaron su pasado, una identidad encubierta la precipitó al futuro. La joven modista Sira Quiroga abandona Madrid en los meses previos al alzamiento, arrastrada por el amor desbocado hacia un hombre a quien apenas conoce. Juntos se instalan en Tánger, una ciudad mundana, exótica y vibrante donde todo lo impensable puede hacerse realidad. Incluso, la traición y el abandono. Sola y acuciada por deudas ajenas, Sira se traslada a Tetuán, la capital del Protectorado español en Marruecos. Con argucias inconfesables y ayudada por amistades de reputación dudosa,...