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.

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.

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.

¡Feliz Día de San Patricio! En los Estados Unidos la gente se viste de verde y organiza desfiles para celebrar todo lo que sea irlandés. Los lectores aprenderán acerca de las tradiciones del Día de San Patricio y las razones por las cuales se festeja esta celebración. Las fotografias llenas de color y el texto cuidadosamente organizado en niveles proveen información a los lectores y los ayudarán a entender cómo celebrar esta festividad. Las preguntas de pensamiento crítico a nivel apropiado ayudan a desarrollar habilidades de lectura informativa. Happy St. Patrick's Day! In the...

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 glossary, index, and an engineering design activity • Supports NGSS Going Up!: In Mi Biblioteca de Ingeniería: Diseño y Construcción Hacia Arriba, kindergarten—second graders reach new learning heights as they learn about the design and construction of skyscrapers, towers, and other tall, amazing structures! Engineering Made Fun: What’s the tallest building, and how was it even made? Young readers learn about skyscrapers, towers,...

In cartoon format, uses zombies to explain the science of forces and motion. Fully translated Spanish text.

¿Existieron de verdad, en un tiempo lejano, los dragones voladores, los grifos dorados, los unicornios mágicos, los gigantes y las sirenas? ¿O acaso estas criaturas misteriosas son producto de la imaginación de nuestros antepasados? En las páginas de este libro nos convertiremos en auténticos paleontólogos y rastrearemos los valiosos indicios que se esconden en los fósiles de los animales prehistóricos más extraordinarios. Un recorrido apasionante para conocer más sobre los dinosaurios, paquidermos, moluscos y reptiles acuáticos que poblaron nuestro planeta hace millones de años, ...