Harriet Tubman

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of money's history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

Read Along or Enhanced eBook: Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

Este libro, con descriptivas ilustraciones, incluye información básica sobre el tema de los sentidos humanos y establece interesantes comparaciones con los de los animales Con el fin de captar las sensaciones del mundo que lo rodea, el ser humano utiliza los sentidos; ojos, nariz, oídos, lengua y piel son los órganos que reciben los estímulos y los envían al cerebro, que identifica a qué corresponde cada percepción. De este modo, desde el nacimiento, en la memoria se va acumulando información sobre la forma en que se asocian las sensaciones y su significado: el aroma del pastel con...

El agua ha servido de inspiración a compositores de todas las épocas y latitudes, quienes crearon obras musicales centradas en las características físicas de este elemento y en su capacidad para despertar emociones ya estimular nuestros sentidos. Son trabajos que nos invitan a soñar, imaginar y disfrutar. La transparencia del agua, el sonido que hace al correr, las tonalidades que adquiere... estos y otros aspectos han sido traducidos a hermosos sonidos que, desde el Barroco hasta nuestros días, han conformado piezas memorables. Este libro-disco contiene 20 obras de distintas épocas y...

Today’s computers come in all shapes and sizes, but not many people actually know how they’re made. The journey from circuits and wires to a ready-to-use computer is a fascinating exploration of science and engineering. Readers get a look inside their laptops, desktops, and even their tablets as they’re shown step-by-step how these electronic marvels are assembled. Readers will love knowing what goes on inside their own machines, and color photographs and simple instructions will show them how they can build their own computer!

A Swedish engineer arrives in Tenerife on a business trip. But it is Carnival time. Ullman soon learns that, during Carnival, one had better join the celebration.