Exploremos las rocas sedimentarias (Exploring Sedimentary 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.

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

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.

In 1991, preparation for the construction of a new federal office building led to a startling discovery: a skeleton. Further excavation exposed the bones of 420 men, women, and children. This area of New York had been a burial ground set aside for both free and enslaved Africans during the 1600s and 1700s. It’s thought to be one of the most important archaeological discoveries of the 20th century. This noteworthy book—which includes sidebars, fact boxes, a timeline, and maps—fills in the gaps of history books, exposing much about what life was like in colonial New York for Africans.

Este libro reflexiona acerca de las nuevas consideraciones geográficas desarrolladas recientemente por las prácticas artísticas frente a las múltiples problemáticas territoriales invisibilizadas por la economía del poder capitalista. En él se da voz a artistas, geógrafos, arquitectos e historiadores procedentes de distintos puntos de Europa que explican y analizan el creciente marco de experiencias iniciadas en la escena artística contemporánea. Todos coinciden en señalar la importancia de lo que se oculta tras la geopolítica actual, y también la necesidad de abrir nuevas...

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Gracias a los avances en la tecnología y las nuevas formas en que los empleados interactúan y se reúnen entre sí, las redes virtuales ahora permiten llegar a otros y hacer conexiones que no estaban disponibles en el pasado. A través de las redes sociales, Zoom y otras herramientas, puede salir adelante y conocer realmente a personas de todo el mundo. Esta guía explorará algunas de las diferentes formas en que puede llegar a otros y realmente expandir su red, sin tener que ir a la oficina o preocuparse por la distancia y otras barreras. Esto es lo que aprenderá en este libro...