Air= air in balloon solid= balloon and basket
It's a gas
No. A hot air balloon is a solid object. That is, the basket, the ropes, the burner and the envelope itself are not gasses. The air within the envelope is a gas, of course; heated atmospheric gasses in fact. But the balloon itself is not a gas.
The solids will be the balloon and the basket, the propane burner and so on.The liquid part will be the condensation on the inside of the balloon resulting from the burning.The gas part is the hot air and the water vapour.[note. the water vapour (lighter than air!) provides some of the lift!]
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
Because the fire or heating device heats the air in the top section ( the actual balloon ) and hot air rises... so the hot air trapped in the balloon makes the balloon rise :)
to make a hot air balloon rise you use hot air
a hot air balloon virtually weighs negative lbs but it would depend on how hot the air is in the balloon.
A hot air balloon flies because it is filled with hot air. Hot air rises and causes the balloon to lift from the ground.
The solid would be the basket and balloon, and the tanks holding flammable gas. The liquid is water vapor released by burning the gas. The gases are the fuel in the tank, and the heated air in the balloon that causes it to rise.
D: The hot air inside the balloon becomes less dense than the air outside the balloon.
The hot air inside the balloon expands, making the hot air balloon fly.