A science teacher tells his class, "Oxygen is a must for breathing and life. It was discovered in 1773." A blonde student responds, "Thank God I was born after 1773! Otherwise I would have died without it."

Q: How do astronomers organize a party?
A: They planet.

Scientists have proven that there are two things in the air that have been known to cause women to get pregnant: their legs.

Q: Why shouldn't you make fun of a paleontologist?
A: Because you will get Jurasskicked.

Want to hear a Potassium joke? K.