Pino. ¡Empieza la batalla!

En la mansión del conde Vázquez acaba de nacer un fantasma negro. La familia se lleva un tremendo disgusto porque un fantasma negro no se ve, y si no se ve, no asusta, y si no asusta, no le sirve de nada ser fantasma. ¿O sí? Cuando el resto de fantasmas está en apuros, el fantasma negro es el único que puede ayudarlos. "El fantasma negro" es una historia que nos habla de la diferencia con respeto, amor y mucho humor.

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...

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...

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.