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.

Today is Mauro's Birthday. Everything is ready for the celebration; his friends have a lot of presents for him.

It is the third Monday in January and school is closed. But do you know why? It's Martin Luther King Jr. Day. Turn the pages of this book to find out what dream Dr. King shared with the world, who Mohandas Gandhi was, how one brave woman helped Martin Luther King Jr. change history. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.

Hoy en día sería difícil concebir cualquier tipo de trabajo sin el apoyo o la participación directa de todo tipo de herramientas informáticas. Desde la aparición de los primeros ordenadores, estos han pasado a desempeñar un papel esencial en las tareas productivas, en nuestras relaciones sociales y en nuestra vida cotidiana. Entre las diversas aplicaciones informáticas, las ofimáticas (acrónimo de oficina e informática) son las que se emplean habitualmente para efectuar trabajos administrativos en el entorno doméstico o de oficina. El presente libro explica las operaciones, desde...

Describes the physical characteristics of honeybees, where they are found, their behavior and social interactions, and a brief history of beekeeping.