Líderes de la comunidad ebook

Mars is perhaps the most thrilling planet these days. With rovers exploring its surface and manned missions in the works, people are wondering if Mars is our next home! In this highinterest book, readers will learn more about Earth's neighbor, including what its climate and surface are like, why it's called the Red Planet, and about the recent discovery of water on its surface. They'll learn all this while solving "Your Mission" math problems that complement and support the text. This motivating volume is an engaging way to explore key aspects of science and math curricula.

Now in Spanish—Who makes sure my suitcase gets on the right plane? This book is full of fascinating facts about everything from Halloween to braille to fire trucks.

Presents a thorough explanation about how the notion of crime, justice, and punishment has evolved in Western history, presenting a variety of specific crimes and revealing the impact they have had on society.

Photographs and easy-to-read text introduce the major food groups and explain the nutritional contributions of each.