Find Bible passages by keyword/ topic

I am chemistry and biology lecturer. When I teach new concepts such as equilibrium or origin of life or liquids, etc, sometimes I would like to check if there is some interesting passage in Bible that talks about that concept. Of course it is likely there will be something about equilibrium but not something directly related to molecules. The thing is I would like to find passages in the Bible with that concept/topic/keyword. I tried to use Google or similar tools but the results are not very good. Anybody can help with this?