It's a gas! Air consists of nitrogen and oxygen and lots of empty space.
Why do people's ears pop when they're riding on trains?
Why does water boil faster on stormy days rather than sunny days?
If you load a plane that can hold up to 2,000 pounds with more than 2,000 pounds of birds, will it still be able to take off?
Ears pop during flight because of changes in air pressure as the plane ascends and descends.
Planning on climbing Mount Everest? You might want to plan to be gasping for air. Learn more on this Moment of Science.
Beware of that crying baby...
Ever wonder what makes pressure cookers cook so quickly? Find out on this Moment of Science.
Ever wonder about the physics behind your everyday office supplies?
The little dimples on the golf ball... they're the subject of this Moment of Science.