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Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Eco-Friendly Energy Is Explained. The Most Current Information Is Provided While Establishing The Understanding That It Does Not Take Much To Make The World A Better Place.

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

Written specifically for teenage parents who must blend their own needs as adolescents with the tremendous needs of their children, this book advocates gentle teaching rather than the harsh punishment too often utilized by many parents. Teen parents and former teen parents share their viewpoints on such issues as spanking, disciplining a child while living with one’s own parents, toilet training, and other topics of concern during a child’s first three years. Escrito especificamente para padres jóvenes que deben balancear sus necesidades como adolecentes con las de sus hijos, este libro...

This book gives students an in-depth look at how large telescopes work. The wonder and awe of space and the scientific instruments we use to study it both come shining through in this fascinating book. Full-color diagrams and illustrations will help students visualize how the technology of telescopes works. Students will learn about the creation of mirrors 8 meters wide and telescope teams that work together to create a telescope as powerful as if it had a mirror the size of the Earth!

“Me llamo Allen Brewster. Tengo nueve años. Vivo en el numero 4152 de vía Solino. En la calle, hay un coche pardo con dos hombres dentro. Vigilan la casa.”Así comienza su confesión este joven investigador. No le gustaba el hígado y buscó la manera de alimentarse como las plantas, a base de agua y sol. Es decir: ¡la fotosíntesis humana! Pero su descubrimiento fue considerado: ALTO SECRETO.Con un fino e irónico humor, el autor, construye una excelente historia, cargada de acidez y parodia sobre la excesiva tutela adulta. La fantasía, la curiosidad y la espontaneidad del...

¿Dónde puedes encontrar el color amarillo? ¿Tiene algún significado especial este color? Los jóvenes lectores aprenderán a identificar objetos amarillos y los lugares donde aparecen en Amarillo, uno de los libros de Los niños y la ciencia: Colores. Where can you find the color yellow? Does this color have any special meanings? Young readers will learn to identify yellow objects and the places they appear in Yellow, a Science Kids: Colors book.