Lecciones sobre la seguridad en el trabajo cient’fico con Max Axiom, supercient’fic

There are many steps in the nitrogen cycle that include difficult concepts and words: denitrification, prokaryotes, ammonia, and more. With the help of this understandable book, even struggling readers will grasp this cycle of nature. Low-level language, fact boxes, and an extended glossary provide readers with essential vocabulary explanations that allow them to further understand each step of the cycle. Full-color diagrams aid readers' comprehension as they move through the cycle from start to finish, and then around again.

These biographies introduce young readers to important figures in American history. Ideal for reports and correlated to the social studies curriculum, the series presents a straightforward account of each individual's life and times and describes how each person contributed to the shaping of our nation.

Clara y Jorge acaban de mudarse a una urbanización porque la convivencia con los vecinos del edificio donde vivían era insoportable. Esperan que ahora todo sea diferente, pero arrastran un secreto oscuro del que no pueden librarse y, aunque sus nuevos vecinos los acogen con entusiasmo, pronto descubrirán cosas terribles de su pasado que abrirán una grieta insalvable entre ellos. Los perros siempre ladran al anochecer es un relato de suspense que se lee de un tirón y que al mismo tiempo arroja luz sobre la condición humana, las dudas que lastran la existencia y la dificultad de enterrar...

Born and raised on a family farm, Henry Ford abandoned his traditional way of life to become an American legend and industry icon. Ford's life mirrored the broad transition taking place in the United States just after the Civil War as it converted from an agrarian to an industrial society during the American phase of the Industrial Revolution. Henry Ford was also a man of contradictions. While he gained fame for producing affordable cars such as the Model T, raising wages, and hiring minorities and immigrants, he also was accused of stubbornness, bigotry, and suppressing workers' rights. This ...