image sources [accessed Aug 2016]

http://imageshack.us/photo/my-images/293/bluratom.gif/ (dead link; unable to find source)

http://www.mansfieldct.org/Schools/MMS/staff/hand/Chemistry1.htm [pouring liquid image]

http://inspirationalquotes.gallery/education-is-the-most-powerful-weapon-which-you-can-use-to-change-the-world/ [Mandela quote]

http://www.slideshare.net/pbbenson/teachers-perspectives-on-autonomy [slide 4; Galileo quote]

http://www.slideshare.net/zegensocial/the-butterfly-story [slide 1; butterfly story]

http://www.docbrown.info/index.htm [mixing chemical / distallation setup]

access July 2020

https://i.imgur.com/ZcBwT.jpg -- never trust an atom . . .

http://www.embellishedminds.com/wp-content/uploads/2012/04/Best-Motivation-Quotes-Isaac-Newton-Quotes.jpg ---- inertia; an object at rest . . .

https://usercontent2.hubstatic.com/13565303_f520.jpg --- RHR

https://i.pinimg.com/474x/88/d0/25/88d025f9a80c6b4ecd40b386078adb75--school-twitter.jpg --- in class; hw; test

https://2.bp.blogspot.com/-zDzFQbBo6A8/Um-QxKqoeLI/AAAAAAAAOt4/daT0ASeIFjw/s1600/chemistry-cat-pun-joke.jpg --- chem joke_Ar