La reproducción de las plantas (Plant Reproduction)

Aquí encontrarás los mejores chistes, que te harán reír durante horas y con los que serás el rey de la fiesta. ¿Sabes qué es exactamente un segundo? ¡Pues el tiempo imprescindible para contar un chiste corto y que todos tus amigos pasen horas llorando de risa! ¿Qué tienen en común un autobús de jubilados, un niño faquir y dos vacas locas? ¡Pues que están todos dentro de este libro! Aprovecha los silencios incómodos para demostrar tus dotes de humorista y convertirte en el rey de la fiesta. Tu único reto será que dejen de troncharse para que tú puedas contar el siguiente...

An elementary introduction to the workings of the human body, the skeleton, skin, circulation, and nervous system.

Texas has changed dramatically since it joined the United States in 1845. It has become a national leader in resources and many industries, serving as a major supplier of the nation's oil, cattle, and agriculture. This inviting nonfiction book will intrigue readers as they learn about major Texas industries through colorful images and captivating facts. Children will learn about NASA, various types of music found in Texas, and even about the most popular Texas sports! The supportive text, accessible glossary, and index aid in better understanding of the content and vocabulary. This book has...

This Spanish-translated book will be a hit with both thrill seekers and with those who prefer to stay safely on the ground. After an introduction to Newton's three laws of motion, readers learn the mechanics of various amusement park rides including roller coasters, Ferris wheels, merry-go-rounds, and gravity rides. They learn how to measure motion, and how kinetic and potential energy apply to their favorite rides. This 6-Pack includes six copies of this title and a lesson plan.