Continentes de la Tierra (Earth’s Continents)

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!

"Amphibians have some of the most interesting life cycles on Earth. The metamorphosis frogs, toads, salamanders, newts, and caecilians go through has many steps that readers need to understand and remember. This book offers a concise overview of the general amphibian life cycle as well as representative examples of the many species within the animal group. Most importantly, the accessible language is paired with diagrams of the steps of the life cycle to augment readers' understanding of this topic often found in the science curriculum."

Edith Stein Courant nació en 1891 en Bresláu (Polonia), en el seno de una familia judía de clase media. De carácter fuerte, alegre y voluntarioso, Edith pronto destacó en la escuela por su compañerismo e inteligencia. Su espíritu de superación la llevó siempre a buscar la verdad sobre el ser humano y el mundo. En 1921 leyó la autobiografía de santa Teresa de Jesús y tomó la firme decisión de convertirse al catolicismo. En 1934 se hizo carmelita descalza. Trabajó en estudios filosóficos sobre santo Tomás de Aquino y san Juan de la Cruz, mientras era perseguida por su...

¡Los niños aprenderán las palabras sencillas de español en este libro divertido y ilustrado, por ejemplo, soleado, calor, nublado, loviendo, viento, nevando, frío, hoy y el tiempo!(Children will learn simple Spanish words through this fun illustrated story, for example, sunny, hot, cloudy, raining, windy, snowing, cold, today and the weather!)There are so many different types of weather: sunny, cloudy, rainy, snowy and more! Which one is your favorite and what activities do you like to do? From sledding when it’s snowing to having a picnic on a cloudy day, young learners will enjoy the ...