La antigua Roma (Ancient Rome)

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

The idea of the Roaring '20s conjures up images of speakeasies, women with short, saucy hairdos, and hot jazz. Readers will learn about the historical events that define this decade, including the devastating war that preceded it. An explanation about project-based learning will help readers understand how it can help them research their topic in unique and interesting ways. Constructive suggestions offer ideas for projects, while encouraging readers to take their studies in new and interesting directions.

¿Y si un día encuentras un manuscrito misterioso oculto en un viejo libro? ¿Y si leyéndolo descubres que existe un pasadizo secreto que te permite viajar en el tiempo? Sí, sí, viajar en el tiempo. Solo tienes que seguir leyendo. Página a página, la Historia se irá abriendo ante ti y podrás oír, oler, ver, sentir, vivir, algunos de los momentos más decisivos y emocionantes de nuestro pasado. Viajarás en una galera romana. A lomos de un corcel árabe visitarás la fabulosa Córdoba de los emires y califas. Derribarás murallas, defenderás castillos, levantarás catedrales....

Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! ¿Qué tienen en común una tortuga marina, una iguana y una pitón? ¡Son todos reptiles! Conozca las características que comparten todos los reptiles. What do a sea turtle, an iguana, and a python have in common? They're all reptiles! Learn about the characteristics that all reptiles share.

Navigation instruments have changed over time. Lodestones, sunstones, and sextants helped early navigators find their way. Modern technology makes navigation more precise than it has ever been. But the roots of navigation still remain. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is perfect for makerspace activities. It ...