1) A single bolt of lightning can heat the surrounding air to temperatures five times hotter than the surface of the sun.

2) The word "flower" contains two vowels: O and E.

3) The windshield wipers were invented by a woman named Mary Anderson in 1903.

4) Honey never spoils. Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible.