The upthrust on the balloon is greater than the weight of the balloon. Thus, it rises upwards. The upthrust on the balloon is greater than the weight of the balloon because the air inside it has a lower density than the surrounding air.
The balloon falls slower than a marble because its buoyancy is greater and because its drag coefficient is greater.
It's greater on the outside until it rises to a point in the atmosphere where the air is very thing. At that point, the pressure inside the balloon is greater which causes it to pop.
There's going to be a greater density in the bowling ball, because its ALOT heavier and isn't hallow like the balloon.
That depends on the ratio of the mass in the basket to the mass of the balloon. The bigger the carrying mass the greater the size of the balloon.
The pressure inside is greater than outside, or else the balloon would not blown up.
Air pressure - greater on inside than out.
The gas inside the inflated balloon has mass. At standard atmospheric conditions at sea level air weighs approximately one kilogram per cubic metre. A 10 passenger hot air balloon has an inflated volume of about 9000 cubic metres so the air inside the balloon weighs around nine tonnes!
Because the air pressure can't go anywhere so it trys to go out by pushing the balloon while it gets bigger it will pop and the air will go out.
A balloon can't blow itself up - it can only respond to internal and external forces. For example, if the pressure inside the balloon is greater than the pressure outside the balloon, it will inflate; if the pressure is greater than the balloon is able to stretch, it blows up. Balloons that are filled on the ground, for example, and then released into the sky may eventually blow up as they reach altitudes with lower air pressure.