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."

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

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

Q: Why can't you trust an atom? A: Because they make up everything.

I just read a book about Helium. It was so good that I can't put it down.

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