Cristóbal Colón (Christopher Columbus)

Este libro reseña cómo, entre 1828 y 1917, las leyes de naturalización establecieron lo que los extranjeros tenían que ser y hacer para dejar de serlo, y cómo los encargados del proceso transformaron un trámite burocrático en un espacio de control para un grupo que, aunque pequeño, era considerado peligroso. Por otra parte, las solicitudes de quienes querían "pertenecer a la gran familia mexicana" no sólo daban pruebas de que cumplían con los requisitos legales. También expresaban las razones por las cuales querían cambiar de nacionalidad, escritas en clave de lo que creían eran ...

Ants are known as one of nature's hardest working animals. Their strength and persistence in bringing food to their colonies have been well documented. Now, beginning readers have a chance to learn about some of the littlest bugs in this volume written just for them. Complete with information about what ants eat, how they live, and generally how they stay so busy, this book is a must-have to satisfy the curiosity of your youngest naturalists. Eye-catching and unique photographs complement the low-ATOS text and aid in comprehension.

Reptiles y anfibios is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.

GRADES K–2: Bring Spanish into the classroom! Introduce early elementary students to the topics of solar heat, light, and energy with this science-themed Spanish title. FEATURES: Kids will learn about how the sun's energy is harnessed, and complete an activity that supports further comprehension. EARLY BILINGUAL LITERACY: Help young learners strengthen their bilingual skills—add the English version of this title into your collection, too. WHY MY PHYSICAL SCIENCE LIBRARY: This collection introduces a variety of science topics while presenting complicated information in easy-to-understand...