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Did you know that baby butterflies look like worms with legs? Caterpillars turn into butterflies inside a shell. Discover more about these flying insects in Butterflies, part of the Life Cycles series of EYEDISCOVER books.

This book tells the story of farmers and life on a farm. What do farmers do? What tools and equipment do they use? Who helps them? Livestock, crops and daily chores are perfectly captured in descriptive photography. With full-color, full-page photographs throughout plus straightforward and engaging text, the I Want to Be ... series is an appealing introduction to a broad spectrum of occupations. The series gives young children a realistic insight into the working day of adults. Easy-to-read captions and color photographs of women and men from different cultures help children understand what's ...

Farmers use tractors to plow their fields. Tractors are also used on construction sites. The biggest tractors are as wide as a road. Learn more about these machines in Tractors, an AV2 media enhanced book

It doesn't take a lot to conserve electricity. Taking action can be as simple as turning off the lights when you leave a room or using "people power" instead of cars to get around. Kids learn this and more about what they can do to help in 10 Things I Can Do to Save Electricity. Now in Spanish.

Técnico electricista 16 – Curso visual y práctico Circuitos en instalaciones eléctricas En esta clase explicaremos los valores de carga y los tipos de cable usados en las líneas definidas en una instalación eléctrica. Veremos el esquema general de instalación y el circuito de alumbrado y tomacorrientes, aprenderemos el proceso de determinación de corrientes máximas para bocas de iluminación, tomacorrientes y protección. Tambien detallaremos los criterios para determinar la cantidad de bocas por circuito y veremos los circuitos de usos especiales y específicos.