1. Hot air balloon, Rainbow, Rain
1.1. Hot air balloon
1.1.1. To see how an hot air balloon work click that link
1.1.1.1. 3 main parts
1.1.1.1.1. The Envelope
1.1.1.1.2. The Burner
1.1.1.1.3. The Basket
1.2. Rainbow
1.2.1. Rain, mist, waterfalls, dew on grass, and lawn sprinklers make rainbows
1.2.2. Optical and meteorological phenomenon
1.3. Rain
1.3.1. Water droplets form from warm air
1.3.1.1. .....and then cools....
1.3.2. Highest average - South America
2. Vulcan, Thunderstorm, Tornado
2.1. Thunderstorms
2.1.1. With this short "You Tube" video you will find an exact and professional explanation: http://www.youtube.com/watch?v=w3QaAVpzedA
2.2. Vulcan
2.2.1. Magma
2.2.1.1. Rock
2.2.1.1.1. hot
2.2.1.1.2. molten
2.2.1.1.3. under the Earth's surface
2.2.2. Locations
2.2.2.1. Between tectonic plate boundaries
2.2.2.1.1. Such as
2.2.3. Some volcanic eruptions are explosive some are not
2.3. Tornado
2.3.1. http://www.youtube.com/watch?v=MjjwPQRVbWk