1) http://www.todayifoundout.com/index.php/2014/01/organic-matter-time-become-fossil-fuels/
2) http://sciencemadness.wikia.com/wiki/Propane
3) http://sciencequestionswithsurprisinganswers.org/2013/05/02/why-is-propane-stored-in-household-tanks-but-natural-gas-is-not/
4) https://www.brightstorm.com/science/chemistry/chemical-reactions/combustion-reactions/
5) http://www.bonappetit.com/test-kitchen/cooking-tips/article/everything-you-need-to-know-about-charcoal-from-briquettes-to-binchotan
6) http://science.howstuffworks.com/environmental/earth/geophysics/fire1.htm
7) http://www.physicsclassroom.com/class/thermalP/Lesson-1/Methods-of-Heat-Transfer
8) http://www.todayifoundout.com/index.php/2011/02/why-red-meat-turns-brown-when-cooked/
9) Knight, Randall Dewey. Physics For Scientists And Engineers With Modern Physics: A Strategic Approach. San Francisco : Pearson/Addison Wesley, 2004. Print.