Blanca's Feather

When rocks change because of environmental conditions, the new rocks are called metamorphic rocks. A rock's chemical or physical makeup may change because of conditions such as temperature, stress, or pressure. Your readers will learn fascinating facts including where metamorphic rocks are most commonly found, the different types of metamorphism, and how metamorphic rocks are identified. Full-color photographs depict these rocks in nature. A helpful graphic organizer shows how these fascinating rocks form.

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.

Los refranes son fases que circulan entre los pueblos de modo oral y reflejan la sabiduría popular. Carlos Silveyra propone en este libro variantes divertidas de los refranes más conocidos, con remates y salidas inesperadas, propias de la picardía infantil. Este material surge de boca de los chicos de distintas latitudes de nuestro país y fue recopilado por el autor durante sus muchos años de experiencia docente.

This brief atlas provides basic information and statistics on all the countries of the world. It includes more than 125 maps and color illustrations as well as the flags of each nation.