Sueños & Desastres

Presenta el conteo de cinco en cinco contando el número de puntos en el caparazón de una mariquita. Se invita a los lectores a encontrar números ocultos en una página de actividades ilustradas, tanto en inglés como en español.

Find out how tools have helped people hunt, build, and make life easier in this engaging, Spanish-translated nonfiction title. With colorful images, timelines, charts, a glossary to assist with vocabulary improvement, and an index, children will learn how tools throughout time have made such an important impact on life as we know it! Featured eras include the Stone Age and the Industrial Revolution.

Ricardo the pack rat has collected so much stuff that his rat hole is full. Includes facts about pack rats.

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!