Animales En Peligro: Un Mundo de Especies Amenazadas

Recounts, in Spanish and in English, the story of Ricardo Romo, a Hispanic-American All-American athlete and scholar who became, among other things, a U.S. representative to the United Nations, and the president of University of Texas at San Antonio.

We use machines every day, but most of us don't understand how they work. When they break down, most of us have no idea how to fix them. Mechanics are the masters of machines. Readers learn that mechanics work on vehicles, including cars, boats, and buses. They use special tools to take them apart and fix what's wrong, and they use their experience and technology to diagnose problems. They often work long hours, sometimes in bad weather, to get us where we need to go. Your readers will see that mechanics keep our world moving and growing.

¿Sabrías qué alimentos elegir? ¿Cómo hacer fuego con un paquete de chicles? ¿Cocinar una pizza con una caja de zapatos? ¿Convertir un clip en una auténtica brújula? ¿Usar tu propia orina para hacer una pila? ¿Calcular la hora con un simple palo? En esta guía encontrarás los trucos más locos de supervivencia: cocinar en un vaso de cartón, vivir en una casa flotante e incluso fabricar tu propia lavadora portátil... ¡No hay límites! Aunque si lo que buscas es divertirte, también te enseñamos un montón de gamberradas que hacer con los zombis, como ponerles una cabeza de...

Take a tour of the world's most fascinating landmarks! The Gateway Arch, Big Ben, the Pyramids of Giza, and the Sydney Opera House are just a few of the landmarks that students will learn about in this high-interest book. This nonfiction math book combines math and literacy skills, and uses real-life examples of problem solving to teach subject area content. The full-color images, engaging sidebars, practice problems, and math diagrams make learning arithmetic concepts relevant and fun. Text features include a table of contents, glossary, and index to increase understanding of math and...