Exploremos los minerales de la Tierra (Exploring Earth's Minerals)

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.

Now available in Spanish bilingual editions, this best-selling series offers big, brainy science for the littlest listeners. Accurate enough to satisfy an expert, yet simple enough for baby, this clever board book explores the ups and downs of gravity. When baby drops food from a high chair, why does it fall? Beautiful, visually stimulating illustrations complement age-appropriate language to encourage baby's sense of wonder. Parents and caregivers may learn a thing or two, as well!

Divi rtete junto a Juan y Mar a contestando las perspicaces preguntas del sombrero. En este ingenioso libro los acertijos muestran c mo los cient ficos buscan todas las posibles respuestas a un problema y comparan una respuesta con la informaci n que ya tienen, c mo eliminan lo que no encaja en una situaci n planteada y, as , llegan a la respuesta correcta. quieres hacer trucos con sombreros?

(back cover) Las tres erres nos ense an diferentes maneras de disminuir la contaminaci n ambiental. Cuando reducimos el n mero de cosas que tiramos, como las bolsas de pl stico, ayudamos a que la tierra donde vivimos est(c) limpia y que el agua que bebemos sea fresca. Cuando reutilizamos cosas, por ejemplo, si usamos ropa que a nuestro hermano mayor le queda chica, ayudamos a conservar recursos. Cuando reciclamos papel, latas y botellas vacas y las llevamos a centros de reciclaje, estos objetos se aprovechan para hacer cosas nuevas. Las tres palabras que comienzan con la letra R nos ense an a ...

Are you ready to embark on a wild counting caper? Imagine... eleven oysters at the opera, eighteen dalmatians dressed in diamonds, and twelve ladybugs shopping in the market! Meet an unforgettable host of zany creatures in this delightful bilingual counting book. Readers will encounter concepts such as color, time, size, shapes, and more as they answer questions relating to colorful cut-paper illustrations. Nancy María Grande Tabor's concise and direct questions encourage thinking while her charming characters entertain. In both Spanish and English, this unique counting book challenges...