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Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.
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Why do we need water to live? Find out in this informative title that explains the importance of water to all living things.
What would happen if a Tyrannosaurus rex and a velociraptor met each other? What if they had a fight? Who do you think would win? Este lector de no-ficción compara y contrasta dos feroces dinosaurios. Los pequeños aprenderán sobre la anatomía, el comportamiento y más de ambos dinosaurios. Este libro está lleno de fotos, gráficos, ilustraciones y datos increíbles.This nonfiction reader compares and contrasts two ferocious dinosaurs. Kids learn about the dinos' anatomies, behaviors, and more. The book is packed with photos, charts, illustrations, and amazing facts.
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.
Until just over 150 years ago, northern Mexico extended thousands of kilometers farther than its current border with the United States. Many different indigenous groups flourished in that region before the Conquistadors arrived. What we know about their lives and customs is the result of archeological discoveries and the chronicles of the first Spanish priests and soldiers that had contact with them.
