Los estados de la materia — Los gases

Did you know that liquids take the shape of their containers? If liquids get hot, they can become gases. Discover more interesting facts in Liquids, part of the States of Matter series of EYEDISCOVER books.

Did you know that baby butterflies look like worms with legs? Caterpillars turn into butterflies inside a shell. Discover more about these flying insects in Butterflies, part of the Life Cycles series of EYEDISCOVER books.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

Provides an overview of combat jets including their design, weapons, equipment, crew, missions, and role in the U.S. Marine Corps. Written in English and Spanish.

The moon people use a cloud bridge to travel to the Earth, a messy but beautiful world of incredible variety that becomes their new home.

A los ojos de los demás, Maggie Fortenberry es sinónimo de éxito y felicidad. Pero las apariencias engañan, pues en realidad, ella ha perdido la ilusión de vivir, ya que los remordimientos del pasado le impiden disfrutar del presente. Desde la muerte de Hazel Whisenknott, su amiga íntima y fundadora de la agencia inmobiliaria en la que trabaja, Maggie quiere dar un giro a su vida, pero en seguida se da cuenta de que es demasiado joven o demasiado vieja para según qué... De pronto da con lo que ella considera un plan perfecto.Sin embargo, los planes no siempre resultan ser tan...