# data[].attributes.body
An increase of velocity, it conserves energy. The high pressure would have to be outside, and low pressure on the inside.

# data[].attributes.body
Density is the compactness inside something. The density increase, which makes the hot air balloon to go up in the air.The ballon rises because of the hot air that is added to the hot air ballon. If cold air were used the air ballon would go up it would go down because there is low density.

# data[].attributes.body
stating that the pressure and volume of a gas have an inverse relationship, when temperature is held constant. The ballon will get bigger.

# data[].attributes.body
law that describes how gases tend to expand when heated. The Volume will increase when the tempeture goes up.