Hi Anonymous! Learning to use search engines for your studies, is a great skill to discover.
I went to Google and typed "earth science branches." I found this:
"geology, oceanography, meteorology, climatology, environmental science, and astronomy"here:
http://www.ck12.org/earth-science/Branches-of-Earth-Science/lesson/Branches-of-Earth-Science-HS-ES/
Bing is another great search engine. Just type your question in "search" and see how many sites you can find! Have fun exploring!