How Do You Measure Time?

Provides an overview of the design, uses, weapons, and equipment of U.S. Navy submarines. Written in English and Spanish.

Severn Cullis-Suzuki was only twelve years old when he addressed the entire world: What are we doing to Earth, our home? How far can human greed go? Little Severn embarrassed the world leaders and asked them to be consistent, that their actions would reflect their words. An emotional speech, full of truths as simple as they are revealing, and even more relevant today than when it was delivered. This is a bilingual edition.

Presenta un tratamiento claro, amplio y riguroso de los contenidos. Permite la atención a la diversidad del alumnado manteniendo como objetivo fundamental su preparación para la Universidad.

We are a nation of immigrants. Even many of the faces we see on TV and in the news are recent immigrants. Meet these new Americans and learn their stories, whether they are athletes, musicians, artists, politicians, or businesspeople. Discover how all immigrants, along with natural-born American citizens, form a mosaic of different cultures and traditions. Written in standard Latin American Spanish.

Devyn Kell siempre había sido un fiel servidor de la Liga. Pero cuando descubrió que sus traiciones le estaban costando la vida a gente inocente, se negó a aceptar ese sistema corrupto. Alix Gerran pretende huir de un pasado que podría costarle la vida. Cuando comenzó a trabajar para Devyn, encontró una causa por la que luchar. Pero sus fantasmas la acosan y los viejos enemigos de Devyn se han vuelto letales... Ante esta situación, ambos deberán decidir si quieren luchar juntos o morir en soledad.