In Grade 10 we'd pass around a Knoppix CD in the computer lab to boot up into something a bit more useful than the "Student Vista" locked down Windows XP machines.

I remember there being a sliding puzzle game in the theme of assembling molecules. I remember this because I remember a very classic argument between two teenagers over "propene" being a typo of "propane" vs. being an actual chemical. If only they were sitting in front of a device that could help them find the answer.