Experimentos sencillos con sólidos y líquidos

As a teen who may be worried about certain warning signs a friend is exhibiting, it’s important to know how to recognize and confront an eating disorder. After all, teens are the most impacted group for developing eating disorders. Learn how the pressures of school, dating, and athletics contribute to body image issues and why teens are vulnerable. Explore eating disorders that people commonly have and how they are treated. Readers from grades six through twelve will have a relatable text to help them understand how they can make a difference to someone they care about.

Introduces Iran, including the geography, people, education, rural and urban life, housing, food, work, and amusements, along with other information about the country.

Un agente de la CIA es relevado de sus servicios y destinado a oficina cuando el hombre que estaba bajo su vigilancia es asesinado. Empieza a investigar y descubre una trama siniestra. La estatua de una Virgen negra le proporciona la primera pista sobre una conspiración que pretende devolver el poder a una antigua dinastía. «Una novela inteligente y trepidante que hurga en demasiados asuntos sucios...» Publishers Weekly

It was September 14, 1814, and America and Great Britain were at war. Frances Scott Key watched from the deck of a British ship, where he was being held captive, as cannons exploded around them. After 25 hours, the fighting ceased and Key peered through the clearing smoke, looking for some sign as to the outcome of the battle. Was the American flag still flying? His wartime experience inspired Key to write a poem, which was later set to music and became America’s national anthem. This book tells the story of the inspiration behind our national anthem, which helped transform the flag into a...