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

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.

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.

There are many kinds of friends including invisible ones, family members, pets, pen pals you have never met, and best friends. This book celebrates the special bond in all its diversity.

Agus le versa al amor y al desamor en la forma que, para mí, siempre he creído que era la más bella de las expresiones. Concebir la poesía como una pequeña explosión, un tímido cortocircuito que transmita, sin necesidad de infinidad de estrofas ni lenguajes farragosos, la esencia del sentimiento en él reflejado. Así es la poesía de Agus, como un dulce deshaciéndose en la boca con lentitud o un fugaz estallido de fuegos artificiales cargados de color.

Provides an overview of the design, uses, weapons, and equipment of U.S. Air Force bombers. Written in English and Spanish.

These titles look at many of the animals typically found in zoos, covering such topics as appearance, behavior, and babies. Vivid photographs compare the habitat and diet of each animal, both in the wild and the zoo.