Mystery of the Thirteen Test Tubes
It was a cold dark night and one of the TAs was preparing the solutions for this weekÕs experiment.  The TA had made a key for the unknowns and placed the key on the lab bench in the stockroom before she went home for dinner.
While the TA was out, one of the stockroom workers decided to help clean the stockroom.  (They know how upset Dr. Bone gets when the stockroom is a mess!)  And – you know it – the stockroom worker threw away the key!

So now it is up to you to identify the contents of the 13 Test Tubes.
Yeah, we know itÕs cheesy!