La Energía Solar (Solar Energy)

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

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.

En la novela “Tiznados”, el autor presenta a Tomás de Renovales y a Mariano de Renovales como protagonistas clave en la trama que torna alrededor del atentado contra la vida del Libertador, Simón Bolívar, que tuvo lugar en el Rincón de los Toros. Inseparables desde que partieron de la casa solariega familiar en Artzentales, Vizcaya, destacaron gloriosamente y sobrevivieron hartas penurias en la guerra de independencia española. Al terminar la contienda partieron caminos. Tomás continuó al servicio del rey de España y se embarcó voluntario en la expedición de Morillo con...

This Spanish-language series, great for English language learners, uses simple text and colorful photographs and illustrations to introduce students to key math readiness skills. Each book focuses on key areas of the kindergarten math curriculum - number recognition, lengths, greater than and less than, and adding and subtracting.

George W. Bush grew up in a prominent political family in Texas. After serving as Texas governor, Bush followed his father's footsteps in becoming President of the United States. This Spanish-translated biography allows readers to discover the life of George W. Bush and explore some of the impacts he made as president through acts like No Child Left Behind. Readers will also learn of the many unexpected challenges Bush faced, such as the al-Qaeda attack on September 11, 2001, the War on Terror, and the Iraq War. The engaging facts, vibrant images, and supportive text work in conjunction with...

Describes the frogs, toads, and salamanders of Mexico's Yucatan Peninsula, looking particularly at the wide variety of adaptations found in the few species that dwell there.