Where do igneous rocks originate?
o How are they formed?
o What are the two categories of igneous rocks?
o What are the distinguishing characteristics between the two categories of rocks?
i know its online somewhere I just can not find it please help
2 answers
http://www.rocksforkids.com/RFK/howrocks.html#Igneous
http://en.wikipedia.org/wiki/Igneous_rock