Define each of the following terms.
Lightning

Explanation

### Step-by-Step Text Solution:

1. **Understanding Lightning**: Lightning is a natural phenomenon that occurs during thunderstorms. It is a visible discharge of electricity that can be seen as a bright flash in the sky.

2. **Definition of Lightning**: Lightning can be defined as a sudden and powerful electric discharge that occurs between the clouds and the ground. This discharge is caused by the buildup of electrical energy in the atmosphere.

3. **Formation of Lightning**: During a thunderstorm, the bottom of a cloud becomes negatively charged, while the ground below it becomes positively charged. When the difference in charge becomes too great, a discharge occurs, resulting in lightning.

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