7th Grade Science
Food Web Info
World Builders - Has information about 6 biomes, with food webs and KCalorie Pyramids
Desert Food Chains - Desert USA
Arctic Tundra Life - Marine Science
Grassland Animals - Hamilton (Ontario) Naturalists' Club
Food Web Video
Biomes
The World's Biomes - University of California Museum of Palentology
Biomes - Enchanted Learning - OK info but pretty cluttered
Mission: Biomes - NASA
Biomes of the World - Teachers First
Food Web Activities
These may not give you as much information about specific food webs in particular biomes, but they will help you understand food webs in general.
Food Webs - Gould League - Activity to sort plants and animals of 4 different biomes by whether they are carnivores, carnivores/omnivores, herbivores, or producers. The biomes are Australian grasslands, African grasslands, Antarctic, and marine.
Build a Food Web - Scholastic
Food Chain Cards - If you print the "cards" out, you could make a game from it.
Producers Consumers Decomposers Game - Sheppard Software
Food Chain Game - Sheppard Software
Food Chain Game - BBC KS2 Bitesize