La Misión de Santa Inés (Discovering Mission Santa Inés)

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

Consolidates the Student's Book lessons with targeted practice, unit by unit Additional practice of reading, writing, speaking, listening and use of English skills Extensive grammar and vocabulary practice Complete practice exam in Unit 10 Designed for independent study at home and practice in class Audio for listening lessons available on the Student's App

El Nether y el Fin son dimensiones muy peligrosas. Si quieres explorarlas y regresar con vida al mundo tradicional tendr�s que mejorar tu juego. Esta gu�a oficial de Minecraft te ense�ar� a abrirte camino en esas tierras inh�spitas, a luchar contra sus criaturas y a buscar bloques y objetos excepcionales. Con informaci�n privilegiada por parte de los expertos de Mojang, �sta es la gu�a definitiva para sobrevivir en el Nether y el Fin. ENGLISH DESCRIPTION Survival is difficult in the perilous Nether and End dimensions, and you'll need to up your game if you want to make it back ...