How often should you make chemistry jokes?
Periodically.
If H2O is the formula for water, what is the formula for ice?
What type of cat loves to go on hikes?
What's the friendliest pen?
What did one firefly say to the other?
Who is the nicest celebrity around?
Why did the professor write on the window?
What cookies are best enjoyed outside?
Why was the cow unable to run the race?
What do you call an angry monkey?
What do you call a businessman asleep in a meeting?
What did the typhoons name their baby girl?
If Dorothy missed Kansas, what did Toto miss?
Why does a barn sound so noisy?
How do animals blend into the desert?
What's the only career where you can never sit down?
What's a Christian's favorite sport?
Why did the photographer attract so many mice?
What do you do for an injured lemon?
Where do shellfish go to borrow money?
What's black and white and goes around and around?