Exploremos las rocas sedimentarias (Exploring Sedimentary Rocks)

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.

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.

Las tortugas gigantes de Galápagos son fascinantes y están en peligro de extinción. Viven solo en las Islas Galápagos, una cadena de islas volcánicas en el Océano Pacífico frente a la costa de Ecuador. Estas tortugas se enfrentan a hilos de los humanos que viven y visitan las islas, así como del cambio climático. Únase a la autora Kate Messner en un viaje a las Islas Galápagos para ver de cerca a estas increíbles criaturas y descubrir cómo la tecnología está ayudando a los científicos a estudiarlas y protegerlas. Galápagos giant tortoises are fascinating—and endangered....

Aquí encountrarás las maravillosas historias de la Biblia, llenas de sabiduría y narradas en un estilo simple y fácil de leer, con ilustraciones atractivas en cada página. -- back cover.

When the Pilgrims landed near Plymouth, Massachusetts, in 1620 they were unprepared for the challenges they would face. Many Pilgrims died until Squanto, a Patuxet Indian, taught them how to survive. To give thanks for a good year, the Pilgrims threw a huge feast, later called Thanksgiving.

During the 20th century, Texas grew from a land of farms and ranches to a state filled with large cities and industries. This fascinating title is a great introduction to Texas history, Texas social life and customs, and Texas economic conditions throughout the 20th century. The intriguing facts and vivid images work in conjunction with the supportive text and accommodating glossary and index to give children an opportunity to enhance their vocabulary and literacy skills while learning about the exciting history of Texas! This book has been translated into Spanish.