¿Qué hacen los policías? (What Do Police Officers Do?)

The Industrial Revolution brought important changes to America. People began migrating to cities for work, and immigrants began to arrive in American in larger numbers than ever before as they looked for new employment opportunities. Readers explore the impact of the Industrial Revolution on U.S. migration and immigration patterns. As readers learn about essential social studies curriculum topics, engaging historical images and detailed primary sources hold their interest. This transformative period in American history comes alive for readers with each turn of the page.

A Tadeo le encantaría que sus colegas arqueólogos le aceptasen como a uno más, pero siempre acaba liándola: destroza un sarcófago y desata un conjuro que pone en peligro la vida de sus amigos Momia, Jeff y Belzoni. Con todos en contra y sólo ayudado por Sara, Tadeo emprenderá una huida llena de aventuras, que le llevará de México a Chicago y de París a Egipto, para encontrar la manera de acabar con la maldición de la momia.

Photographs and easy-to-read text introduce the major food groups and explain the nutritional contributions of each.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

In graphic novel format, follows the adventures of Max Axiom as he explains the science behind sound.