Argentina, Chile, Paraguay, Uruguay

In the last one hundred years, Earth’s average temperature has risen one full degree. That might not sound like much, but it affects Earth’s oceans, land, plants, and animals. Learn all about global warming, the carbon cycle, the greenhouse effect, and weather and climate with this Spanish science reader that brings the power of science and informational text to students at a level they can understand. This nonfiction book introduces students to new concepts, vocabulary terms, and STEM topics. With detailed images and fascinating sidebars, the leveled text supports students reading at...

Explore the lifecycle of a butterfly and learn about the transformation of caterpillars into beautiful butterflies. The connection to language arts is the rich vocabulary related to butterflies, caterpillars, and their transformations.

A lovely historical novel set in fifteenth century Andalusia, with its maze of love and hints of humor.

La física y la química son dos ciencias fascinantes e imprescindibles para comprender el funcionamiento del mundo que nos rodea, pero que a menudo no han conseguido ser bien entendidas por los estudiantes. El propósito de este atlas es presentar la física y la química de forma clara, amena e interesante, huyendo siempre que sea posible de la carga matemática y de las fórmulas que no sean imprescindibles. En la elaboración de este libro se ha hecho un importante esfuerzo por simplificar las explicaciones y evitar la sobrecarga de datos, aunque se han subrayado datos curiosos y...