Energía del viento

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

El Mayflower es un barco que ha llegado a ser célebre en la historia de los Estados Unidos porque en 1620 transportó desde Inglaterra al grupo conocido como "los peregrinos", quienes serían los primeros colonos europeos en establecerse en Norteamérica. Ellos zarparon desde el puerto inglés de Southampton y bautizaron como Nueva Inglaterra a la tierra que los acogió. Como señala este libro, el Pacto del Mayflower designa el acuerdo que los hombres adultos de esta comunidad firmaron a bordo del barco para fijar criterios generales que sirvieran como fundamento para el gobierno de la...

This book introduces readers to what it means to celebrate Divali, and shows them why this holiday is special.

What do toothpicks, dryer lint, plastic bottles, and soup cans have in common? They are all items that have been used to create art! Found art is a type of art that involves creating pieces from found objects that are not usually considered to be artistic. Learn how these ordinary objects are made into beautiful art. Created in collaboration with the Smithsonian Institution, this Spanish STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the...

Some people are afraid of mice, but these tiny critters are full of interesting facts. Through both English and standard Latin-American Spanish, learn how little mice are taken care of and how some of these itty bitty animals are even kept as pets or used to run tests. From tiny pink pups to wild mice invading your home, these animals will help readers learn definitions and early concepts with the use of full-color pictures and a great picture glossary. Strong picture-text correlation aids in comprehension Reading level supports beginning readers Picture glossary helps develop vocabulary...

Sesenta autores, desde catedráticos de universidad hasta estudiantes de Secundaria y Bachillerato, nos presentan los cuarenta desafíos que la Real Sociedad Matemática Española propuso con motivo de su centenario.Son cuarenta estimulantes retos que avivan el ingenio. Enfrentándose a ellos, el lector se sentirá un auténtico investigador matemático.Pero no hay que asustarse. No es necesario saber muchas matemáticas. La herramienta esencial para resolver los desafíos es pensar ordenadamente.