This lesson consists of words that can be categorized according to their Greek roots.  Knowing the meaning of these roots helps you understand the meaning of these words.

auto - means "self"          bio - means "living"          geo - means "earth"

graph - means "write"          meter - means "measure"          peri - means "around"

phon - means "sound"          photo - means "light"          tele - means "distant"

Sort the words according to their Greek roots.

CATEGORIES: auto    bio     geo     graph     meter     peri     phon     photo     tele

photograph - photosynthesis - television - telecommunication - telegraph - telescope - telephoto - periscope - geothermal - geology - biology - perimeter - thermometer - barometer - micrometer - autobiography - biography - biorhythms - autograph - automobile - symphony - phonology - phonograph - phonics - telephone