Experimentos sencillos con animales y plantas

En 1912 el británico Robert Scott y el noruego Roald Amundsen rivalizaron sobre las nieves de la Antártica por ser el primer hombre en pisar el polo sur. Los dos aventureros arriesgaron su vida y las de sus acompañantes en una carrera tan angustiosa como temeraria que se saldo con una rotunda victoria y una trágica derrota. La trepidante historia de esta pugna se completa en el libro con la narración de otros arriesgados intentos por conquistar el polo sur.

Life in the Southern Hemisphere is bitterly cold for most penguins, but they don't seem to mind. Most penguins live in large colonies on the coast of Antarctica or on nearby islands. Readers explore penguin colonies for themselves, learning fun facts about these beautiful birds with the help of accessible text. Readers learn how penguin families work together to feed their young and keep them warm. A helpful graphic organizer aids in reader understanding. Readers will enjoy detailed images of penguin species at home in the Antarctic with every turn of the page.

Explores our natural connection to the earth and its four elements, air, water, soil, and fire, underlining the importance of biodiversity and respect for the environment.

Readers will learn about the important relationship between producers and consumers as well as buyers and sellers and how they all work together to create a healthy economy. This instructive volume defines basic economic concepts like goods and services and explains production with examples of the different types of production. It also covers the primary and secondary industries that produce goods. Concepts such as marketing and advertising are also covered, for a well-rounded view of this fascinating aspect of the economy.