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Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.

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.

OF COURSE you think I was the bad guy, terrifying poor little Jack. You don't know the other side of the story. Well, let me tell you... Fully translated Spanish text. SEGURO que piensas que yo soy el malo del cuento y que me dedico a aterrorizar al pobre Juan. No conoces el otro lado de la historia. Pues bien, te la voy a contar...

¿Quién dijo que acampar, hacer experimentos y aprender a defenderse de un cocodrilo no son cosas de chicas? ¡Una chica audaz puede hacer una fogata, reconocer pisadas de animales y además construir su propia casa de muñecas! Si eres valiente, curiosa y no te gusta aburrirte, este libro es para ti. Contiene datos muy útiles e instrucciones para realizar actividades increíbles... ¡Sé parte del club de las chicas audaces!