Matecracks 7 Años: Para Ser Un Buen Matemático

Aimed at young children, this series teaches the basics of healthy eating, hygiene, caring for your body, and sexuality. The humorous illustrations capture the reader's attention, getting across the point that is expressed in the simple but informative texts. Children will learn about the dangers of drug abuse, the importance of exercise, how to fight germs, where babies come from, and much more. Text copyright 2004 Lectorum Publications, Inc.

Provides a basic introduction to caves, including geographical information and plant and animal life.

27 recorridos, muchos de ellos clásicos y otros menos frecuentados, pero todos ellos imprescindibles para conocer uno de los espacios protegidos más singulares del planeta. Rutas en las que el autor sabe, además, cómo inculcar en el lector todo el interés que el itinerario merece, relatando detalladamente cada recorrido y los principales valores ecológicos que han motivado su inclusión en la guía.

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...