Cultura clásica

In 1848, gold was discovered in California, attracting over 300,000 people from all over the world, some who struck it rich and many more who didn't. Hear the stories about the gold-seeking 'forty-niners!' With black-and-white illustrations and sixteen pages of photos, a nugget from history is brought to life!

Readers will learn about the important relationship between producers and consumers as well as buyers and sellers and how they all work together to create a healthy economy. This instructive volume defines basic economic concepts like goods and services and explains production with examples of the different types of production. It also covers the primary and secondary industries that produce goods. Concepts such as marketing and advertising are also covered, for a well-rounded view of this fascinating aspect of the economy.

With striking full-color photos and minimal text, in Spanish, this series immediately involves young readers as they discover intriguing facts about the world around them.

Un nuevo formato para la serie middle grade de ciencia más divertida. Pachi y su papá científico vuelven con una serie de aventuras que surgen a partir de preguntas raras. ¿Es posible fabricar un gas desde cero?, ¿el agua salada pesa más que el agua dulce? Descubre las respuestas a estas superinterrogantes de la manera más divertida: ¡con experimentos! Y la mejor parte es que puedes convertir tu casa en un laboratorio con cosas que de seguro tienes en la despensa.