They didn't have any chemistry.
Because they never get a reaction.
He got caught giving alcohol to minors.
They lack chemistry.
Because you can put it in someones drink
Barium
He thought the bond was ironic.
Chemistry, because there is lots of acid involved.
A chemystery.
There was no chemistry.
I dunno, but I'll go down in math and chemistry too.
He just added Acetic Acid until it became clear.
Because they have no chemistry
Chemistry, because he knows a lot about bonds!
They never got a reaction out of him.
Realizing that your being intently watched for your reaction to their sic clouds - BEST RECOGNIZE!
A Super Bowl
Peter Parker can shoot webs. Clark Kent.
He used a krypton-currency.
Because krypton gas is odourless.
He needed to see if how fast his grade dropped broke any laws of physics.
Original joke) Because that's where students have the most potential.
En-dwarf-ins
Bike carbonate of soda!
When there's a stamp on it.
By the "M" on his pajamas.
A Buy-ologist.
Cell culture.
It was in A-minor
He was caught playing in A minor.