Manual para el Trabajo Social Comunitario

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.

A human hand is found in the zoo's elephant enclosure. The rest of the teacher and ardent environmentalist turns up on the lawn. Although admired by his students, nearly everyone else seems to have a reason to want him dead.

La gran enciclopedia para los pequeños curiosos. Diviértete observando los árboles de tu jardín y descubre un sinfín de curiosidades: ¿Qué animales viven en las ramas, las hojas y el tronco de los árboles? ¿Quieres fabricar una pajarera? ¿Sabes cómo replantar un árbol?

The conjunction of imaginary characters and objects from daily life are presented to help little ones find a connection between both elements, showing each character, object, situation, and activity in its context. PP.