Electricidad Basica

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Sean Covey presenta los principios entredecíos en el fenómeno los 7 hábitos, para adolescentes y jóvenes. Este cuaderno inspirado por el clásico ensena los principios de los 7 hábitos para ayudar a los jóvenes manejar las situaciones más difíciles y decisivas. Solo como Sean Covey puede, el ofrece una este guía para que los adolescentes mejoren sus vidas familiares, académicas y personales.

Advances in science have changed our world, all thanks to the scientists behind important discoveries. Some of the most important discoveries have come from female scientists, who were as unique for their work as they were for being trailblazers in a male-dominated industry. This text offers a biographical treatment of such important scientists as Marie Curie, Rachel Carson, and Jane Goodall, as well as others who have made it possible for women of the future to have a career in science. Age-appropriate text, fact boxes, historical and modern images, and a comprehensive timeline complete the...

Només hi ha un planeta Terra, però saps què el fa únic? Obre les pàgines d'aquest llibre per viatjar a través de les galàxies, observar les estrelles de prop i visitar tots els racons de la Via Làctia. Recorre els planetes veïns i sorprèn-te amb els secrets que amaga el nostre món. Curiositats impactants, il·lustracions detallades i dades impressionants de la mà de Tomàs Molina. Descobreix els secrets de l'univers i endinsa't a les profunditats de la Terra amb EL GRAN LLIBRE DEL PLANETA.