Mezclas y soluciones (Mixtures and Solutions)

Equality is a contentious issue in our society today. This is why it's important for students to be given information related to equality so they can come to reasonable conclusions of their own. Using age-appropriate language, this book discusses equality in a number of different forms and touches upon why equality is so important in a democracy. The text also explores how extreme equality, like most extremes, could be a bad and unrealistic idea. Readers will gain enough information to understand and think about this complex idea for themselves.

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 Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports. This 6-Pack includes six copies of this title and a lesson...

Siempre es interesante leer y releer las obras de Darwin por la riqueza de los datos que aporta a sus reflexiones sobre el misterio de los misterios que subyace en el principio de la existencia. Aventurarse en este Diario de los primeros tiempos de un Darwin joven, abierto a las respuestas que da la Naturaleza, tiene el aliciente, además, de descubir el germen de su gran obra, El origen de las especies.

Una series de bosquejos y sermones versiculo por versiculo o pasaje por pasaje con comentarios y pensamientos que aplican las Escrituras a la predicación y enseñanza de acuerdo con las necesidades del oyente.