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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.

You've only got one day to spend at the carnival-how do you make the most of your time? Students will learn how to measure time while reading about a fun-filled day at a carnival! This fiction Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of...

Cuando David Houlding descubre lo difícil y dura que se está convirtiendo su juventud, sufre un síndrome real llamado Hikikomori, que lo aísla por completo de la que él considera una sociedad plástica, y pasa cuatro años encerrado en su habitación. Esto provoca una depresión, desencadenada a su vez por los actos de algunas personas que son muy importantes en su vida. Quizá nuestra realidad no sea tan diferente a la de él.

Bright stars twinkle in the night sky. Have you looked up into the sky on a clear night and seen these tiny points of light? Did you know that there are many kinds of stars in space? Find out all about them in this Spanish-translated book.

With sugar skulls, sweet-smelling marigold petals and joyful songs, Hispanic families welcome back ancestors on this holiday.