Racismo: Historia del peligroso mito de la raza

Este libro es biográfico. Relata pormenores de la vida de Oscar de la Hoya, un excelente deportista México-americano, nacido el 4 de Febrero de 1973 en el este de Los Ángeles, California, Estados Unidos de América. El autor ha querido aquí testimoniar su reconocimiento y admiración por un hombre que aún joven conquistó la cúspide de su carrera como boxeador. Oscar se nos presenta como un joven modesto y sencillo que hace honor a sus raíces culturales; por lo que prefirió nacionalizarse mexicano, respetando su vínculo familiar con ese país. Aparece como un destacado pugilista. Y...

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.

Discusses the physical characteristics of great white sharks that combine to make them such able predators.

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.