Atlas de especies en peligro

Todo lo que deberías saber a los trece años y que nadie te ha contado todavía... La guía completa de la adolescencia Todo lo que necesitas saber acerca de: Amigos * cambios en tu cuerpo * compras ropa y maquillaje * acné * tallas * cabello * vergüenza * qué comer * estados de ánimo * fumar * amor y desilusión * cómo recuperarse de un corazón roto * deporte * chicos * sexo * instituto * tus derechos * bebidas alcohólicas * hacer que tus padres te tomen en serio * drogas * dinero confianza * ser feliz con tu propio y verdadero ser. Todo lo que deberías saber a los trece años y que ...

Even as the world changes, skilled labor will always be needed. There's nothing quite like the ability to create things with your skills and your own hands. Carpenters use their skills to build things we use every day, including items such as furniture, buildings, and bridges. They read building plans, choose materials, design, and create. This book teaches kids that to become a carpenter, you have to use a lot more than a hammer and nails; you need your brain too. Photographs and diagrams enable readers to make key connections with the text.

Readers will learn about the important relationship between producers and consumers as well as buyers and sellers and how they all work together to create a healthy economy. This instructive volume defines basic economic concepts like goods and services and explains production with examples of the different types of production. It also covers the primary and secondary industries that produce goods. Concepts such as marketing and advertising are also covered, for a well-rounded view of this fascinating aspect of the economy.

Mrs. Frizzle's class investigates the disappearance of the salmon from the sea and in the process learn about migration.