Sueños intactos

Life on Earth depends on carbon. In fact, about 18.5 percent of a human body's mass is carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the carbon cycle. Though this concept can be confusing, all readers have a chance to understand this concept through the text and simple diagrams in this book. Both struggling readers and those looking for review can find the most important components and vocabulary of the carbon cycle in low-level, accessible text.

Practice finding patterns while learning about music around the world! Many different musical instruments use patterns to make different sounds into rhythms, such as tambourines, drums, and flutes. This charming, Spanish-translated text uses vibrant images, engaging practice questions, and helpful mathematical diagrams to help young readers understand patterns and early STEM themes. Children will have fun discovering patterns that these instruments make and learning how to make patterns of their own with homemade instruments! This 6-Pack includes six copies of this title and a lesson plan.

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.

Quinta entrega de la brillante y monumental saga Tirano, que narra el épico asedio de la isla de Rodas en el año 305 a.C. Una novela ambientada en la mayor guerra de la historia de la humanidad. Hacia 305 a.C., dos hombres se enfrentaron por la hegemonía del Mediterráneo: Tolomeo, señor de Egipto, y Antígono elTuerto, señor de Asia. Y, entre ambos, la estratégica isla de Rodas y la ciudad fortificada del mismo nombre, que ninguno podía permitirse ceder al enemigo. Para Demetrio, el inteligente aunque jactancioso hijo de Antígono, Rodas era una presa que debía tomarse a toda costa....