Requirement 5 of 12
Wind, Rain, Lightning, and Hail
Explain what causes wind, why rain happens, and how lightning and hail form.
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- 5 Tell what causes wind, why it rains, and how lightning and hail are formedNot complete
Requirement 5 discussion guide
Use these notes to explain several basic processes behind weather and storms.
Weather formation
Key ideas
- Wind is caused by air moving from areas of higher pressure toward areas of lower pressure.
- Rain forms when water vapor cools, condenses into droplets, and those droplets grow heavy enough to fall.
- Lightning forms when electrical charges build up inside storms and then discharge.
- Hail forms when strong storm updrafts carry raindrops into very cold parts of a storm where they freeze and grow in layers.
Wind, Rain, Lightning, and Hail discussion locked
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Requirement 1
Meteorology and Climate
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Requirement 2
Dangerous Weather Safety
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Requirement 3
Weather Forecast Sources
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Requirement 4
Pressure Systems and Fronts
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Requirement 5
Wind, Rain, Lightning, and Hail
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Requirement 6
Cloud Types
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Requirement 7
Water Cycle
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Requirement 8
Human Activity and Climate
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Requirement 9
Earth's Tilt and Climate
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Requirement 10
Weather Observation or Visit
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Requirement 11
Weather Safety Talk
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Requirement 12
Weather Careers
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