My Scientific Misadventures

Did you hear about the Florida teen expelled from school for her unsupervised chemical forays?

Tragic. 

Reading Ash and DNLee's posts over at SciAm made me furious, too. So, I thought I'd take a trip down memory lane, recounting all the stupid (but important!) things I tried in science labs, Kindergarten through College.

Disclaimer: Don't try these on school grounds. Given today's educational climate, you'd likely be in serious trouble for any of these activities.

1. I learned about acidic corrosion by testing small drops of concentrated HCl on coins, nails, paper clips, wood - basically anything that changed color or smoked.

2. Particle size controls reaction rate? I cut up a bunch of hand warmers to play with thermite.

3. I examined anything and everything under our high-powered class microscopes. Including pus, blood, urine, mucus, skin, hair, tears, and spit. All from me.

4. I figured out how to catch asbestos-lined 3-prong clamp sleeves on fire.

5. When I heard about the halogen flame-test, I didn't stop at the required substrates. Turns out, lots of things from your lunch-box will give a positive test.

6. I explored salt bridges and solution conductance using lantern batteries and light bulbs.

7. I cultivated fruit flies in an old pasta jar in my dorm room. Never did see a white-eyed one...

8. Many things will catch fire using a magnifying glass + sunshine.

9. Sometimes, heating something just a bit more will produce beautiful crystals. And sometimes multiple grams of bright blue copper complexes end up all over your smock, the bench, and the floor.

10. My "wilderness survival" kit contained a flint and steel. I did not use these exclusively for survival.

11. Best way to learn about peroxides? Drop some liver into them (or some blood).

12. The experiment to extract luciferin from fireflies did not go as planned.

13. Fun with food chemistry: Just start mixing things from the cupboard and see what happens!

14. You cannot remove urushiol (poison ivy oil) with rubbing alcohol. It just seeps deeper into your skin.

15. Iodine starch tests work on bread, paper, and clothes...

I'm sure there are many, many more. End result? Proud Ph.D. chemist.

Chemistry Kits - Getting Your Hands Dirty

Many science bloggers bemoan the disappearance of the chemistry set, a seemingly anachronistic toy for the Millenials, who might rather Skype, LARP, Geocache, or Tweet (Note: All real activities with very little risk of injury or mess). Scientists especially detest the new “Chemical-Free Chemistry Kit” by Elenco, an educational products company that also sells models of Julius Caesar’s head, a color-in-the-countries globe, and an aluminum triceratops (who was real, btw).  JAYFK and Speakeasy Science jumped into the fray, suggesting that the Kit enhances public fears over the words “chemicals” and “chemistry,” making them synonymous with “evil.”

Should these fears deprive our youth of the chance to make beautiful alum crystals or basement fireworks?

Playing with dangerous things at an early age has a special place in my heart, a flame rekindled in a recent Collectors Weekly article by Lisa Hix. She recounts the laundry list of potentially dangerous compounds the pre-WWII generation could experiment with: potassium nitrate (explosives), sodium ferrocyanide (dyes), sulfuric acid (batteries), and even uranium ore (radioactivity). Most of the cases include hand-drawn images of young boys dressed in ties and lab coats, pouring liquids at eyeball-scorching closeness with no goggles.

Well, I may never have been that cavalier, but I was allowed a certain leniency to play with dangerous things as a child. Whenever thermometers would break, my brother and I would scoop the mercury (yup, mercury) into a little jar and play with it, watching the tiny spheres break apart and glom back together on the glass surface. Cyanoacrylate polymers (Superglue) could stick anything to anything, especially your hands to your face. When we learned that peroxide solution would make blood foam up, we would intentionally pour it on all sorts of things (much parental dismay) to see if we could duplicate the effect. A middle-school experiment to demonstrate how color of transition metals depended on ligation environment went horribly wrong, blasting bright green liquid all over the floor (and us), but I recall being fascinated how the metal complex color changed back to blue when it hit the floor (Readers: Can you guess the metal?). I also discovered that the same compound could permanently stain my lab apron and the concrete floor. Today, much of my current lab attire has holes, stains, and smudges that won't come out with any measure of bleach.

Perhaps my favorite example of theory - experiment - practice came from the day I discovered urushiol, one of the oily components of poison ivy leaves that produce an allergic skin response.  I had a theory based on “like dissolves like” that I could perhaps pick the poison ivy barehanded, and then wash away the urushiol with a suitable solvent, such as isopropyl alcohol (rubbing alcohol). Well, you can guess where this story goes: I went to the doctor with horrific, oozing, itchy bumps all up and down both hands. I had successfully taught myself about skin absorption of common chemicals, which I remember every time I accidentally get some methylene chloride on my lab gloves.

Update (July 30, 6:30PM) - Changed, at commenter gippgig's suggestion, the words "toxic and deadly" in para. 3 to "potentially dangerous." Gippgig correctly points out that potassium nitrate is not itself toxic (its danger comes from potential to construct explosives), and both uranium ore and thiocyanides are not themselves highly poisonous.