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What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...

Despite unprecedented economic growth, the injustices and turmoil endured by Mexico over the course of Porfirio Diaz's three-decade presidency would lead to the outbreak of that country's biggest social revolution. In this profusely-illustrated history book for children, the events surrounded Porfirio Diaz's mandate are narrated in a simple, clear style. The book's profuse illustrations contribute to a didactic and comprehensive understanding of the Porfiriato. The supplementary charts and the timeline spanning the 1876-1911 period help organize and narrow down the most relevant facts in this ...

El niño Claudio se fija en las cosas que ocurren en un campamento de verano para niños con poderes sobrenaturales.

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these feathered dinosaurs face to face: The Caudipteryx had feathered arms and a tail that looked like a pom-pom! The Sinovenator may have used colorful feathers to attract a mate! The Microraptor may have used its feathers to glide...