Because there is no longer any mass to fill the balloon , and the rubber type are not so elastic, especially if the balloon blown few hours ago , kind of stretch mark
If you let the air out of a balloon, it will deflate and decrease in size as the pressure inside the balloon equalizes with the external pressure.
The air pressure inside the balloon is higher than the surrounding air pressure, causing the air to escape rapidly. This creates a force that propels the balloon in the opposite direction, making it fly away.
When the air rushes out of the balloon, it releases heat energy, which results in a decrease in enthalpy within the balloon. This process is known as an exothermic reaction, where energy is released to the surroundings.
When air is released from a balloon, it creates a burst of air that rushes out with force. This burst of air can create a sensation similar to wind due to the rapid movement of air molecules against your skin.
The heat from the lighter, when placed on the surface of the stretched surface of the balloon,would melt the plastic of the balloon and allow the air inside the balloon to escape, so deflating the balloon.
If you let the air out of a balloon, it will deflate and decrease in size as the pressure inside the balloon equalizes with the external pressure.
Deflate is to allow air to escape from a balloon.
deflate
The heated air causes the whole balloon to rise. When the air inside the balloon cools down, or when the hot air is let out, the balloon goes down.
it will deflate dick
because when you let a balloon go, all the air comes out really fast and that's why balloons whistle when you let it go.
Helium is lighter than air, so it makes the balloon float. If you let go of the balloon, it will float up into the atmosphere because of the difference in density between the helium inside the balloon and the air outside.
The word "deflated" means that all of the air or gas has been let out. So, a deflated balloon is one that no longer has any air in it.
If there's a fan in the room or the air is moving, the balloon will move with it.
because when you breath in the balloon then the balloon goes biger and and when you let go of the balloon then the air comes out its exactly like our breathing system
By puting more hot air into it thus creating lift. hot air rises cold air lowers, so when the hot air is traped it has no were else to go but up so it brings the hot air balloon with it. And to decend a flap at the the top of the balloon opens by itsefl to let hot air out and to let you down.
Erm.. no.. i believe its Buoyancy... this force causes u the hot air balloon to rise.. not Gravity..