TA TE TI

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...

Introduces different kinds of light, the properties of light, and how light can create shadows of different shapes and sizes.

From Mexico to the tip of South America, Latin America features varied scenery, including deserts, grasslands, plains, and mountains. Some are extreme: The Andes is the world's longest mountain range, and the Atacama Desert has not had rain for over 400 years! Latin America's remarkable landscape is an essential factor in its surprisingly different climatic zones. This insightful volume offers a comprehensive tour of the many vibrant countries of this fascinating region, highlighting its most striking areas in vivid photographs. It is also an inviting exploration of geography, natural...

«En un mundo violento, erizado de muros y excavado con fosos, el universo de Francisco de Asís carecía de torreones y murallas. Pobre de bienes y de poder, estaba en paz con todos, vivía como hermano de los seres, y a todos ellos dirigía una mirada llena de respeto... Sus ojos habían llegado a ser maravillosamente humanos... Su horizonte no era la cristiandad de su tiempo, con sus fronteras que defender, sino Jesucristo, a quien amar, y el ser humano a quien salvar». Eso fue lo que llevó a Francisco más allá de las fronteras de la cristiandad. En plena cruzada, partió hacia Oriente ...