Ecosystems & Biomes

from http://science-class.net/archive/science-class/Ecology/ecosystems_biomes.htm

The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. If nature were not beautiful, it would not be worth knowing, and if nature were not worth knowing, life would not be worth living. Of course I do not here speak of that beauty that strikes the senses, the beauty of qualities and appearances; not that I undervalue such beauty, far from it, but it has nothing to do with science; I mean that profounder beauty which comes from the harmonious order of the parts, and which a pure intelligence can grasp.

Henri Poincaré

These resources are generally appropriate for grades 5 - 9. In some cases they have been classified by grade level. 

The groupings are general and somewhat arbitrary. As with anything in education; your milage may vary.

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