Water
Earth
Fire
Air
Avatar: The Last Airbender
100
At what temperature does water freeze?
32o Fahrenheit or 0o Celsius
100
Earthworm
100
Humans cause most wildfires, but what is the biggest natural cause of wildfires?
Lightning
100
What do we call moving air?
Wind
100
What element can Katara bend?
Water
200
Water is made up of what two elements?
Hydrogen and oxygen
200
What "earth" word caused this damage?
Earthquake
200
What is the leading cause of house fires?
Cooking
200
Earth's atmosphere is made up of oxygen, nitrogen, argon, carbon dioxide, and very small amounts of other gases. Which of these gases comprise 78% of the atmosphere?
Nitrogen
200
What element can King Bumi bend?
Earth
300
Which ocean is saltier: Atlantic or Pacific?
Atlantic
300
What would an alien call a person who lives on our planet?
Earthling
300
The three ingredients needed for fire are heat, fuel, and what?
Oxygen
300
Where does most of the oxygen in our atmosphere come from: forests or oceans?
Oceans
300
What element can Zuko and Azula bend?
Fire
400
How much does a pint of water weigh?
One pound (16 ounces)
400
Earthmovers
400
An 1836 fire at the U.S. Patent Office ironically destroyed the patent for what water supply device?
Fire hydrant
400
How much air does an adult human breath each day: about 150 liters, about 1,500 liters, or about 15,000 liters?
About 15,000 liters
400
What was the first element Aang could bend?
Air
500
In which city does it take longer to cook a hard-boiled egg: New Orleans or Denver?
Denver
500
What is the title of this photo?
Earthrise
500
Where is the Olympic Torch lit before traveling to the country hosting the Olympic Games?
Olympia, Greece
500
_____ is the amount of water the air can hold before it rains.
Relative humidity
500
Aang is the current Avatar; who was the most recent Avatar before Aang?
Roku