¿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.

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

Mysterious ancient ruins, hidden deep in the jungle of southern Mexico In May 1840, explorers John Stephens and Frederick Catherwood road their mules along a steep, muddy jungle path. They were hoping to find the ruins of an ancient, deserted site in Mexico they knew only from visitors’ accounts. Through the trees, they spied the remains of a crumbling stone palace. Palenque! In the weeks they spent there, the men discovered intricately designed buildings and mysterious glyphs, or symbols. Who built this city? What did the glyphs mean? The questions remained largely unanswered until the...

Young readers will learn the ways that César Chávez fought to protect the rights and lives of migrant workers in this inspiring Spanish-translated biography that gives history behind protests and developments of unions that Chávez led. Vivid images and an interesting timeline of Chávez's life work in conjunction with supportive text and a helpful glossary, table of contents, and index to engage readers from cover to cover.

Inspirado en el bestseller #1 del New York Times Ella persistió / She Persisted de Chelsea Clinton y Alexandra Boiger, llega ahora esta serie en Chapter Books sobre mujeres que sobresalieron, lucharon y se levantaron contra viento y marea. Sonia Sotomayor es la primera jueza latina en la Corte Suprema en la historia de los Estados Unidos, pero su trayectoria no fue fácil. Ella tuvo que superar numerosos obstáculos y desafíos en el camino, como recibir un diagnóstico de diabetes a los siete años. Pero no dejó que eso le impidiera alcanzar su sueño e inspirar a los niños de todo el...