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Compendio de preguntas cuyas respuestas desconocemos, ecos eternos de tiempos remotos, el paso de una faceta a la otra, memorias imborrables de épocas difíciles, pesimismo desde la cuna, crisis existencial, un universo sin sentido, llantos desgarradores, almas en pena, emociones pasajeras y paradojas inexplicables.

What do a shark, a seahorse, and a ray have in common? They're all fish! Learn about the characteristics that all fish share.

In Showing Kindness, beginning readers will learn about all the ways they can be kind and considerate in their daily lives. Vibrant, full-color photos and carefully leveled text engage young readers as they discover how they can build character by showing kindness.

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

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.