Cómo cambia el agua (How Water Changes)

This book describes dump trucks called off-highway trucks, explaining their operating equipment and dumping beds, fuel, and jobs.

Read Along or Enhanced eBook: Travel to the 22nd century in this captivating, Spanish-translated nonfiction title that allows readers to discover the future of space. Elementary readers will be fascinated with the possibilities that may await human life in the future. Readers will discover the technology that may be used to one day allow humans to live on another planet, new worlds, alien life, and artificial intelligence. Featuring vibrant photos, images, informational text, a glossary of terms, and a list of helpful websites for more explorations, children will be excited and enthralled as...

Dos frentes abiertos contra la naturaleza en lugares distintos. Por un lado, el incendio de un bosque en Asturias que Luis, miembro de Icona, intentará detener. Por otro lado, la lucha de Daniel, su hijo, para impedir el derribo de los árboles de su calle en Madrid. ¿Quién sadrá victorioso de esta cruenta batalla? Una historia que muestra la importancia de la conservación del medio ambiente.

This Title Explains What An Ecosystem Is And How The Plants And Animals Within An Ecosystem Rely On And Effect Its Existence. Different Types Of Ecosystems Are Described, As Well As The Food Webs Within Them. How Some Changes To An Ecosystem Can Be Good And How Some Harmful Changes Can Destroy Them. Teaches Students What An Important Role They Can Play In Keeping These Intricate Ecosystems Alive.

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...