Documents Behaviors of gases and the atmosphere. HOT AIR RISES! hot-air-balloons-work-video.htm.

5 Key Principles of Meteorology Behaviors of gases and the atmosphere 5 Key Principles of Meteorology Principle #1 Principle #1 HOT AIR RISES! http://videos.howstuffworks.com/howstuffworks/43-how-hot-air-balloons-work-video.htm…