I found a cute site with science related cartoons including site owner explanations.
http://physics.bemidjistate.edu/QuotesCartoons/sih.htm
This is my favorite:
http://physics.bemidjistate.edu/QuotesCartoons/whatwater.htm
And this:
http://physics.bemidjistate.edu/QuotesCartoons/whatson.htm
http://physics.bemidjistate.edu/QuotesCartoons/sih.htm
This is my favorite:
http://physics.bemidjistate.edu/QuotesCartoons/whatwater.htm
And this:
http://physics.bemidjistate.edu/QuotesCartoons/whatson.htm