La Energía Solar (Solar Energy)

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

Follows the Thirteen the Amendment that freed the slaves, end of the war, and the death of President Abraham Lincoln.

Go for the goal with this text, which examines fascinating female sports heroes who’ve proved to the world that gender is no barrier to athletic success. Readers will delight in learning about the lives of Mia Hamm, Wilma Rudolph, and the Williams sisters, as well as other important women who’ve broken barriers in sports. Readers will be inspired to pursue a career in athletics after learning about how others have achieved success in spite of great obstacles. The biographical nature of the text supports social studies curricula, and fact boxes and a comprehensive timeline provide...

In graphic novel format, follows the adventures of Max Axiom as he explains the science behind sound.

¿Necesitas de una forma fácil que ayude a los niños a ver las promesas de Dios y cómo pueden confiar en su amor en sus vidas diarias? Los versos de promesas en este libro son escogidos de la Nueva Biblia al Día para ofrecer ayuda y ánimo cuando un niño se siente asustado, solo, preocupado, enojado, decepcionado, desalentado, triste, rebelde, impaciente o enfermo. Y cuando los niños necesitan estar convencidos de la protección, el amor, el perdón y la ayuda de Dios; y que Él les escucha cuando oran. Este libro ofrece una maravillosa oportunidad para que los niños atesoren la...

What is a responsibility? How can you be responsible for yourself? Read this book to learn about how and why to behave responsibly.