Understanding Models

by Jeanne Sturm

Published 1 January 2009

Our Footprint on Earth

by Jeanne Sturm

Published 1 August 2009

Video Games

by Jeanne Sturm

Published 1 January 2008

Restoring Wetlands

by Jeanne Sturm

Published 1 January 2009

GPS

by Jeanne Sturm

Published 1 January 2008

MP3 Players

by Jeanne Sturm

Published 1 January 2008


Understanding Biomes

by Jeanne Sturm

Published 1 January 2011
Learn about the characteristics of freshwater, marine, forest, greenland, and tundra biomes and some of the animals that live there.


Looks at the effects of human activity on the environment and discusses steps that can be taken to reduce our negative impact, including recycling, chemical-free gardening, using renewable energy sources, and conserving water.

En este libro se explica cómo podemos contribuir a mejorar nuestro medio ambiente y dejar de contaminar.

Inventors and Discoveries

by Jeanne Sturm

Published 1 January 2011