¿Por qué hibernan los animales? (Why Animals Hibernate)

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 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.

A simple introduction to the work of teachers, including the different types, equipment used, training, daily life, and other aspects of their job.

Descubre las maravillas de este fabuloso país con Atlas del Perú , el primer y único atlas ilustrado para niños con reseñas de lo mejor y más representativo de cada región. En sus páginas, encontrarás mapas regionales con hermosas y divertidas ilustraciones para que los más pequeños del hogar conozcan las particularidades culturales, económicas, geográficas e históricas de cada rincón de este riquísimo país. Atlas del Perú es una introducción a la geografía del Perú cuyo propósito central es motivar a los niños a conocer más acerca de las diversas regiones del país.

Book Features: • Ages 5-8, Grades K-2 • 24 pages, 8 inches x 8 inches • Simple, easy-to-read pages in Spanish with full-color pictures • Includes a photo glossary and a reading extension activity • Supports NGSS Dive Into Learning: In Mi Biblioteca de Ciencias de la Tierra y el Espacio: Una Excursión por la Tierra, kindergarten—second graders learn about all the different landforms on Earth and the forces that create them. Science Learning Made Fun: Earth’s surface has mountains, plains, canyons, and many other formations. Young readers learn about all the different landforms...

The unsinkable luxury liner known as the Titanic may have sunk on its first transatlantic voyage in 1912, but people remain riveted to its storied legend. The collision with the iceberg in the North Atlantic was not the only mistake that was made that day. In this spellbinding volume, readers will learn about the passengers and crew aboard the doomed ship and what really happened that tragic night. Historical photographs will transport them back to the glamorous era, while the narrative paints an absorbing picture of the Titanic's sad fate.