Biome Web Quest
Part I:
http://earthobservatory.nasa.gov/Experiments/Biome/
Part II:
http://earthobservatory.nasa.gov/Experiments/Biome/graphmatch_advanced.php
Part III:
http://earthobservatory.nasa.gov/Experiments/Biome/plant_it.php
Part IV:
http://www.ucmp.berkeley.edu/exhibits/biomes/marine.php#oceans
Part I:
http://earthobservatory.nasa.gov/Experiments/Biome/
Part II:
http://earthobservatory.nasa.gov/Experiments/Biome/graphmatch_advanced.php
Part III:
http://earthobservatory.nasa.gov/Experiments/Biome/plant_it.php
Part IV:
http://www.ucmp.berkeley.edu/exhibits/biomes/marine.php#oceans