Difference jokes

What's the difference between a teacher and a train?

The teacher says, "Spit out your gum," but a train says, "Chew chew!"

What's the difference between roast beef and pea soup?

It's easy to roast beef.

What's the difference between a surgeon and God?

God knows he's not a surgeon.

What's the difference between a silver medal and a priest?

They both came in a little behind.

What's the difference between an enzyme and a hormone?

You can't hear an enzyme.