- #1
timothychoi
- 5
- 0
When I blow a balloon with CO2, it falls as it is heavier than air. Then it is gravity that causes the balloon to fall.
When I buy a balloon filled with helium gas from a store, it floats as it is lighter than air. But what force is causing the balloon to float?
When I buy a balloon filled with helium gas from a store, it floats as it is lighter than air. But what force is causing the balloon to float?