Cómo podemos utilizar el tornillo?

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

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

Colección de cuentos de iniciación a la lectura en los que dos personajes, Pin y Tito, relatan al pequeño lector sus aventuras mediante un texto sencillo e imágenes reales e imaginarias. En este título, Pin y Tito descubren los cinco sentidos cuando huelen las flores, ven el Sol, acarician los animales, oyen los sonidos del parque y disfrutan de los sabores que les ofrece la Naturaleza.

Few kids can resist jumping into a big puddle. Getting wet can be fun. Learning to describe objects as wet can be fun, too, as evidenced in the bright, entertaining photographs and simple, engaging text in this motivating book. Readers will love to identify the objects within these pages, selected to appeal to them, and use the objects to comprehend new vocabulary words in corresponding sentences.

How do countries work together? Running a country requires hard work. There is a lot involved. That includes making laws that help people do the right thing. When leaders work together, their countries benefit. This Spanish book introduces 2nd grade students to the concepts of diplomacy, government, and foreign relations. Detailed images in conjunction with easy-to-read text and basic text features provide readers with an inviting reading and learning experience as they build social studies knowledge.

"The students in Mrs. Park's class prepare to celebrate Martin Luther King, Jr. 's Day by thinking about the values he taught. Contains an informative section on Martin Luther King, Jr."