A Chilly Charizard!
The Celsius scale, used by most of the world to measure temperature, is based upon the freezing and boiling points of water. On this scale, water freezes at 0 degrees and boils at 100 degrees. 

The Fahrenheit scale is primarily used in the United States. On this scale, water freezes at 32 degrees and boils at 212 degrees.

To convert degrees Celsius to degrees Fahrenheit, multiply the Celsius temperature by 1.8 and then add 32 degrees.

To convert degrees Fahrenheit to degrees Celsius, subtract 32 degrees and then divide by 1.8.

Early this morning Professor Oak was flying over Antarctica in his plane. The air outside his plane was measured at
minus 200 degrees Fahrenheit. Suddenly, he saw a Charizard approaching from the west. The Charizard let out a tremendous roar and a blast of fire flew in front of Professor Oak's plane. The professor noted the temperature from the fiery blast was recorded at 500 degrees Celsius!

What was the difference (in degrees Fahrenheit) between the air temperature over Antarctica and the temperature of the Charizard blast?





 
Bonus Question
What was Professor Oak doing flying over the Antarctic?