Los ciclos de vida de los anfibios (Amphibian Life Cycles)

Life on Earth depends on carbon. In fact, about 18.5 percent of a human body's mass is carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the carbon cycle. Though this concept can be confusing, all readers have a chance to understand this concept through the text and simple diagrams in this book. Both struggling readers and those looking for review can find the most important components and vocabulary of the carbon cycle in low-level, accessible text.

There are thousands of species of bees, and not all are yellow and black. However, the telltale yellow and black of the honeybee and bumblebee are the best known. Beginning readers explore the world of bees and find out what keeps them busy all day. From flying from flower to flower to making honey, the details in this book are both familiar and new to curious future entomologists. Full-color detailed photographs complement the low-ATOS text, making it the perfect addition to any early elementary library or classroom.

El presente volumen reproduce, de acuerdo con la edición alemana de Annemarie Gethmann-Siefert y Bernadette Collenberg-Plotnikov, uno de los juegos de apuntes correspondientes a las lecciones de Hegel sobre estética o filosofía del arte impartidas en el semestre del verano de 1826 (un año antes de la publicación de la primera parte de la filosofía del espíritu absoluto, dedicada también al arte, de su monumental Enciclopedia berlinesa). Se trata de los apuntes, tomados al dictado en clase, de F. C. H. V. von Kehler.

Discusses the difference between secrets that are fun to keep and those that make people unhappy, and encourages youngsters to confide in their parents or another trusted adult such painful matters as bullying or improper touching.

"Estos son los poemas breves de su epoca de juventud, que fueron anos de enamoramientos y de actividad rebelde contra Somoza. Algunos de estos poemas son amorosos y otros politicos, y tambien algunos a la vez amorosos y politicos."

Isa and Fer find out there's going to be a new baby in the family. Isa is delighted but Fer has mixed feelings.