The World's Hardest Minerals
According to the Mohs' scale of mineral hardness, diamonds are the hardest mineral.
Do Members of the Royal Family Have Surnames?
The British royal family is known as the House of Windsor.
Do Water and Ice Weigh the Same?
By volume, ice weighs less than water.
What is Benzene?
Benzene is a highly flammable petrochemical with a sweet smell.
What Was Apollo 1?
Apollo 1 was the first manned mission of the Apollo program in the United States.
What is PETA?
PETA stands for People for Ethical Treatment of Animals.
What Is The United States Census?
The United States census is mandated by the constitution.
What Is A Census?
A census is an official process of acquiring, recording, and analyzing information regarding a given population.
What is Trophy Hunting?
Trophy hunting refers to the hunting of game for pleasure.
What is the No Fly List?
The No Fly List is a list of people who have been banned from traveling by aircraft within, into or out of the United States
Are Plastic Drinking Straws Harmful to the Environment?
According to some estimates, as much as 3 million pounds of plastics straws are used in the United States each day.
Which Bird Lays the Smallest Egg?
Various types of hummingbirds are responsible for laying the smallest eggs in the world.
Which Countries Use the Metric System?
The International System of Units, known as the metric system, is used by virtually all countries of the world.
The World's Most Expensive Cars
These are the 10 most expensive cars ever to be sold at auction.
What is Boxing Day?
In many countries, Boxing Day is celebrated by shopping.
Who Owns All the Land in Canada?
Queen Elizabeth II owns all of the land of Canada.
What is the Longest Suspension Bridge in the World?
The longest suspension bridge in the world is Akashi Kaikyo Bridge in Japan.
The History of Valentine's Day
Valentines Day is celebrated on February 14.
The World's Largest Cinemas
Kinepolis Madrid in Spain is the world's biggest cinema complex.