Real fact: The tallest volcano we know of in the whole solar system is Olympus Mons on Mars. It is about 13.6 miles (72,000 feet) tall, about 2.5 times as tall as Mount Everest above sea level. (Heights differ a little depending on how you measure. Some NASA materials say about 16 miles from the surrounding plains.)
Real fact: A lightning bolt can heat the air around it to about 50,000°F for a split second. That's about 5 times hotter than the surface of the Sun (about 10,000°F)! (Sources: National Weather Service, NASA)
Real fact: Babies are born with about 300 bones (some partly made of soft cartilage). As kids grow, many of them fuse together, so most adults end up with 206 bones. (Sources: NIH/NIAMS, KidsHealth)
Real fact: One worker honey bee makes only about 1/12 of a teaspoon of honey in her whole life (a summer worker bee lives only about six weeks). A jar of honey takes the work of thousands of bees! (Sources: University of Missouri Extension, PBS NOVA)
Real fact: The first computer mouse was built in 1964 by engineer Bill English for Douglas Engelbart's lab at SRI. It was a carved wooden box with two metal wheels and just one button. The original is at the Computer History Museum.