¿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.

De la A a la Z, cuentos con rima, maravillosamente ilustrados, que invitan a reconocer las letras con humor y fantasía. Con instrucciones didácticas para el adulto que acompaña la primera lectura y ejercicios recomendados para los niños. Con letra mayúscula de imprenta. Disponible en Argentina y países limítrofes.

GRADES PK–2: This 16-page Spanish title (8'' x 8'') introduces early readers to the leopard—what they eat, why they climb trees, and how far they can jump! FEATURES: Simple Spanish text and vivid photos present fascinating facts about an amazing African animal. Comprehension questions are included to advance learning. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. BUILD A LIBRARY: Collect every title from the collection to stock your home or classroom library. Reading together is a great...

Princesses must always be perfectly dressed. Whether it's for a walk on the lake, under the Northern Lights or for a wedding at an ice palace, what matters is having the right style. With the beautiful stickers that you will find in this book, you can dress these princesses for every occasion.

Con páginas desplegables y atractivos modelos realistas de las especies de dinosaurios más populares, este libro es una maravillosa introducción al mundo de estas fascinantes criaturas. With foldout pages and beautiful, realistic models of the most popular dinosaur species, this book is an incredible introduction to the world of these fascinating creatures.