Hacer hielo: Comprobar tu trabajo (Making Ice: Checking Your Work)

Uncovers the secret codes that different animal species use to relate to each other, revealing that communication among certain animals is not different from human communication.

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.

Tula Springs is the tale of Bobby Pickens, assistant manager of Sonny Boy Bargain Store, who gains a new lease on life, though he almost comes to regret it. Bobby's handsome half-brother F.X. moves in, and things go awry all over town. Mistaken identities; entangled romances with Burma, Toinette, and Donna Lee; assault and battery; charges of degeneracy; a nervous breakdown--it all comes to a head at a Christmas Eve party in a cabin on a poisoned swamp. This is sly, madcap romp that offers readers the gift of abundant laughter. La pl�cida y aburrida vida de Mr. Pickens, el neur�tico...

Alguien está dando muerte a los Cazadores de Sombras del círculo de Valentine, y esas muertes enemistan de nuevo a los Cazadores de Sombras con los subterráneos. Sólo Simon, ahora convertido en vampiro, podrá evitar el enfrentamiento. Mientras, Clary y Jace descubrirán un misterio que les llevará a fortalecer su relación o... a destruirla para siempre.