Exploremos el ciclo de la roca (Exploring the Rock Cycle)

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.

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.

One dog in a teacup, two caterpillars on a leaf, three horses having a conversation... Fun photographs and simple text help introduce young readers to counting numbers from zero to ten. A fish-counting activity encourages young readers to practice their counting skills.

Some of the most powerful things in the world are so tiny they can't be seen with the naked eye! Readers will be amazed at what they see when they take a glance at the world of the mini but mighty in this stunningly fascinating Spanish-translated nonfiction title that features remarkable images and graphics, informational text, index, and glossary. Through these features, readers are able to explore and discover such micros as DNA, atoms, bacteria, phytoplankton, and nanotechnology items like nano-robots and microchips!

The Sri Lanka Travel Map from Periplus is designed as a convenient, easy-to-use tool for travelers. Created using durable coated paper, this map is made to open and fold multiple times, whether it's the entire map that you want to view or one panel at a time. Following highways and byways, this map will show you how to maneuver your way to banks, gardens, hotels, golf courses, museums, monuments, restaurants, churches and temples, movie theaters, shopping centers and more! This 3rd edition includes maps and plans that are scaled to: Area Map: Sri Lanka 1:525,000 City Plans:Colombo 1:15,000...

Adiós a las trampas es el resultado de un concurso convocado por el IFE, el Conaculta y la Secodam en donde los niños y los adolescentes mexicanos expresaron su opinión sobre la corrupción en un dibujo. Si bien es difícil predicar con el ejemplo, los niños muestran una conciencia cívica ejemplar; ello es reconocido por los adultos que acompañan los dibujos de este libro: Germán Dehesa, Carlos Elizondo Mayer-Serra, Denise Dresser y Federico Reyes Heroles.