1) The human body contains enough carbon to make over 9,000 pencils.

2) The world's most expensive car is the Bugatti La Voiture Noire, which sold for over $18 million.

3) The world's largest flower is the Rafflesia arnoldii, which can grow up to 3 feet (1 meter) in diameter and weighs about 15 pounds (7 kilograms).

4) The word "school" contains two vowels: O and O.