La represa de Itaipú

Describes how the rig was built, how it stands out in the water, and how much drilling it does in a day.

Discover How Katydids Got Their Name, That There Are Hundreds Of Kinds With Different Colors And Body Length, What They Eat, And How They Reproduce.

Un práctico libro que engloba diferentes contenidos, con explicaciones muy sencillas e ilustraciones adaptadas, para tratar los temas preferidos de los más pequeños. Con esta enciclopedia podremos resolver las dudas más diversas con claridad y precisión.

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

Ants are so important to our ecology that some scientist fell that if ants ever disappear so might humans! SOY UNA SEMILLA es un libro de la serie Hola, lector! que muestra la diferencia entre dos semillas, asi como su evolucion hasta llegar a convertirse en plantas. Los ninos disfrutaran del texto dinamico con el que esta escrito este libro.