La proclama de emancipacion

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

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

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.

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

People have been sending mail for a long time. But how they do it has changed a lot! Read about the history of mail as you learn to collect data. This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning data measurement easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase understanding of math and reading concepts. An in-depth problem-solving section...

"Nada con medusas replandecientes, descubre el misterioso fondo marino y conoce los increíbles unicornios marinos. Tiburones, ballenas, tortugas o extrañas criaturas de las profundidades nadan a través de las páginas de este precioso libro que combina magníficas ilustraciones y fotografías. Los jóvenes lectores conocerán la extraordinara vida que esconden los océanos y mares de todo el mundo y descubrirán cómo ellos mismos pueden ayudar a cuidarlos. Un fascinante viaje submarino que muestra los asombrosos océanos, qué plantas y animales viven en ellos y cómo podemos ayudarlos....

Método de español destinado a estudiantes jóvenes y adultos.Nivel A2 del MCER. Versión renovada completamente de un clásico de nuestro catálogo, ahora en 5 niveles. Adaptado a las directrices del Plan Curricular del Instituto Cervantes. Consta de 9 unidades y tres repasos. Incluye Lecturas extra, modelo de examen nivel A2, apéndice gramatical, glosario y la transcripción de las audiciones. Incluye un CD para trabajar la destreza oral.En relación con la edición anterior, la nueva edición se presenta en un formato mayor, con mayor número de ilustraciones y un aumento del número de...

The crustacean subphylum can be broken down into decapods, amphipods, copepods, and other types. This title offers readers from grades one through four comparisons between the needs and roles of different crustaceans, which will allow readers to understand the subphylum’s importance. Readers will recognize and expand their knowledge about familiar species like the lobster and the shrimp, while being introduced to the likes of the wood louse and zooplankton. Dynamic photography and methodically organized information will help readers examine the many sizes, types of limbs, and other features ...