Science Buddies
Science Buddies: Home Sweet Biome: How Do Plants Grow in Different Environments?
In this science fair project you will learn about biomes and how different climatic conditions affect plant growth. This can explain why some plants and animals are similar in different areas of the country, and in other parts they are not.
Smithsonian Institution
Smithsonian Environmental Research Center: Forces of Change:meet Your Atmosphere
This superb site has detailed information about the composition of the atmosphere, how it is always changing, how it protects life on earth, and the destructive impact human activity has on it. There is an atmosphere design lab, as well...
PBS
Nh Pbs: Nature Works: Ocean Zones
Discover more about the underocean environment at this site that surveys animals, environmental factors such as light and temperature, currents, animals, plants, and the like.