How hot is lightning? 54,000 DEGREES FAHRENHEIT.

What percentage of people live north of the equator? 90%

Olympus Mons, a volcano three times the height of Mt. Everest, is located on what planet? MARS

What are the S, P, D and F electron orbital letters short for? SHARP, PRINCIPLE. DIFFUSE AND FUNDAMENTAL.

By the time a human is 75 years old, how much of that time has been spent sleeping? 25 YEARS.

How many muscles are involved in taking a single step? 200.