El Pacto Del Mayflower /

Defines pulleys, 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.

California grew by leaps and bounds between the Gold Rush and 1900. People from different backgrounds emigrated to California from across America and around the world in search of a new life. This primary source reader focuses on immigration in California from the time of the Gold Rush to the end of the nineteenth century. Primary source documents allow students to see different points of view, and help students look at the world and current issues with a historical lens. This Interactiv-eBook builds literacy and social studies content knowledge through the use of intriguing primary sources...

El tercer libro de ciencia para niños del científico Gabriel León. En esta nueva entrega de la serie de ciencia para niños de Gabriel León, Pachi, su papá y el perro Lukás se sumergirán en el mundo de las preguntas raras sobre el Universo. ¿Por qué los planetas son redondos? ¿Por qué titilan las estrellas? ¿Por qué me sigue la Luna cuando camino? ¿Por qué Marte se ve rojo? ¿Por qué la Vía Láctea se llama así? Son algunas de las interrogantes sobre el espacio que serán abordadas con un toque de humor y cotidianeidad.

Books in this series introduce children to simple forces. Each book uses simple, repetitive text to teach children basic vocabulary, and includes stunning photographs that show how different forces are at work in the world around us.

Learn how crayons are made with this fun and informative STEAM book! Perfect for kindergarteners, this title makes it easy for parents and teachers to introduce STEAM to their youngest learners. Created in collaboration with Smithsonian, this Spanish book uses real-world examples to make STEAM topics easier to understand. It features an age-appropriate STEAM activity that is ideal for makerspaces and introduces English language learners to the steps of the engineering design process. It helps beginning readers learn to read and is ideal for children ages 4-6.