Exploremos las rocas metamórficas (Exploring Metamorphic Rocks)

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.

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.

Un canto a la libertad, el amor y la amistad. Este libro recrea la vida de Hipatia de Alejandría, una figura capital de la antigüedad y protagonista del filme Ágora, de Alejandro Amenábar. Estuvo versada en filosofía, matemáticas y astronomía, pero su clase magistral para la historia fueron su sed de vida y de conocimiento, así como el valor y la entereza para defender sus ideales de convivencia y tolerancia. Hipatia fue un espíritu libre, una voz incómoda a causa de la férrea voluntad de llevar una vida plena como mujer sin pedir perdón por ello, aunque debiera pagar por ello el...

Trabajadores de mi ciudad (Workers in My City) builds critical literacy skills with this exciting Spanish-translated nonfiction reader. Engage students with fascinating content that will keep them enthralled from the first page to the last. Focusing on different types of workers, children will be introduced to the people who work hard in the city. This informational text features simple phrases, exact text-to-image relationships, vivid photographs, and large font to encourage students to examine different types of city workers. Aligned with state standards, Trabajadores de mi ciudad (Workers...

School is a place everyone goes to, but are they all the same? They certainly aren’t. Learn about schools around the world and what kids eat for lunch, when their summer vacation is, and even how long they have to go each day. It may make you think school isn’t so bad after all! Get your backpack on and get ready to visit schools around the globe! This title will allow students to ask and answer questions such as who, what, where, when, why, and how to demonstrate understanding of key details in a text. • World map • Bold keywords with phonetic glossary • Multicultural

An introduction to the night sky, describing major constellations and the planets of the solar system.