What is the difference between a heating curve and a saturation curve? Can I get an example of a saturation curve too please

saturation curve:

http://www.google.com/search?q=saturation+curve&hl=en&client=firefox-a&hs=GHZ&rls=org.mozilla:en-US:official&prmd=imvns&tbm=isch&tbo=u&source=univ&sa=X&ei=6tLST-SFFKeU2wWb652HDw&ved=0CFwQsAQ&biw=1024&bih=605

heating curve:
http://www.google.com/search?q=heating+curve&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a