Ciudad antes del alba

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

Bridges are a big part of how people get from place to place. But how do they work and how are they built? In this engaging text, readers will explore these important engineering marvels that link places divided by water. Along the way they’ll learn how to build their own model bridge with a step-by-step guide accompanied by full-color photographs of each step. Accessible text illuminates the science behind every span we drive over—and sometimes under!

Dise�ada con un cuadro para poner la foto de su beb� en la cubierta, esta Biblia de historias llena de relatos simples y de acci�n le da a los ni�os el mensaje de que Dios ama al mundo, a las personas y a �m�.

Antes de convertirse en Rey, cualquier príncipe ha de conseguir el tesoro custodiado por un dragón, rescatar a una princesa en apuros, deshacer un encantamiento y vencer a un famoso caballero en un torneo. Pero el príncipe Bonifacio prefiere recorrer el mundo acompañado por su amigo, el juglar Udolfo. ¿Alcanzará así el trono? La prosa y el verso se compaginan, en un ejercicio de versatilidad solo al alcance de escritores de talento.