How often should you make chemistry jokes?
Periodically.
What does the Easter Bunny call the act of leaving his eggs all over?
What do you call a hotdog at Halloween?
How come you never hear anything about the 10th reindeer Olive?
What do you call Santa's Helpers?
How does a penguin build its house?
What do you call a greedy elf?
Why are pigs so good at building houses?
Did you hear that H2O opened up a bike shop?
What type of music do frogs listen to?
What kind of friends should you take to dinner?