Lichens can tell you if you can breathe!!!

Do you know what lichens are? Lichens are living things. They are, "symbionts," in simple words symbionts means organisms that live together. In the case of lichens, algae and fungi live together and produce a "new look." But this description is a very short form. To get a better understanding, try this web site:

http://ocid.nacse.org/lichenland/

You can learn about organisms that indicate clean air. You will learn many other things about these organisms and you will learn about the sustainability of the Earth.

Here is a site to help learn the jargon of lichens is a FUN WAY!
http://ocid.nacse.org/lichenland/queryanimated.php