Internet Field Trip: Weathering and Erosion Internet Links Bryant Creek Watershed Project See how the forces of nature and time carved out the Bryant Creek watershed in Missouri. http://www.watersheds.org/atlas/g_earth/gaf.htm Internet Field Trip: Energy Sources Internet Links The Energy Tree Branch out from the Energy Tree to explore Earth's energy sources. http://www.oneworld.org/energy/etree.html Department of Energy Find out about energy from the EIA Kid's Page. http://kids.earth.nasa.gov/archive/air_pressure/index.html La energía solar: Aprende cómo funciona la energía solar. http://www.censolar.es/menu2.htm Internet Field Trip: Protecting the Environment Internet Links United States Environmental Protection Agency: Explorer's Club Enjoy puzzles and a recycling game while you learn to protect the environment. http://www.epa.gov/kids/ NASA Classroom of the Future Program: Exploring the Environment Solve some real-world environmental problems. http://www.cotf.edu/ete/ Planet Pals: Earthzone Learn about planet Earth with activities, crafts, and a card game. http://www.planetpals.com United States Environmental Agency: On the trail of the missing ozone Join Detective Farley as he investigates the loss of ozone. http://www.epa.gov/ozone/science/missoz/index.html Nueva Utopía: Ciudad virtual de la paz Trabajemos juntos en la maravillosa aventura de construir un mundo mejor. http://www.nalejandria.com.ar/utopia/index.htm