Word+Lists

List of Grade 3 ELA Words
http://reading-sage.blogspot.com/2011/08/third-grade-reading-and-language-arts.html

High Frequency Tier 2 words
http://reading-sage.blogspot.com/2011/08/high-frequency-academic-vocabulary.html

Science Words
http://reading-sage.blogspot.com/2011/09/3rd-grade-science-test-vocabulary.html

Greek and Latin Affixes
http://www.factmonster.com/ipka/A0907017.html