Las Tres Preguntas

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!

Surveys the life of Nathan Hale, a Revolutionary War hero whose service to George Washington as a spy cost him his life.

El siglo XVII constituye un periodo clave en la historia de España, de Europa y del mundo. El monarca Felipe IV se inclina con mayor facilidad a los juegos y entretenimientos de toda ralea, mientras que el reino desfallece en malogradas batallas contra los ingleses y los franceses en lidia para arrebatar las riquezas del Nuevo Mundo. La historia de España se nos desvela bajo un prisma original, que gira alrededor de los personajes retratados por el gran pintor don DiegoVelázquez. En medio de la vida disoluta del Alcázar, la infantita Margarita recorre salas y corredores protegida con el...

What takes the shape of the container it is in and changes shape when the container changes? Liquids! Liquid is a state of matter that has some big differences from solids and gases. Learn all about liquids with this colorful, Spanish-translated title! This 6-Pack includes six copies of this title and a lesson plan.