September 24, 2008 -SCIOTO ELEMENTARY SCHOOL
Nick asked: How much does the atmosphere weigh?
Jerrys answer: Although you might not think of air as having much weight, when you account for all the air over the entire planet, it adds up - to about 5 quadrillion metric tons!

October 1, 2008 -WINTERSET ELEMENTARY SCHOOL
Michael asked: How many different kinds of clouds are there?
Jerrys answer: Clouds are divided into 3 groups based on their height: low, middle and high. And within these 3 groups, there are at least 9 different categories based on the appearance of the clouds. On top of that, there are dozens of types of clouds that don't fit into any category so all told, there are over 100 types of clouds.