Five Things You Need To Know: Five Fun Facts

It's Friday and you know what that means!  Five Fun Facts for Friday!

1. About 10% of the people in the world are 'lefties'.
2. The largest snowflake ever recorded was 15 inches wide.
3. Ketchup was sold in the 1830s as medicine. 
4. The average lead pencil can last for 50,000 words. 
5. The largest tape worm found inside a body was 114 feet long.