ThinkRankSome Natural Phenomena
Lightning and earthquakes involve powerful natural processes. Electric charges can build up and discharge through the atmosphere, while movements within Earth can generate seismic waves. Scientific explanations support practical safety: avoid exposed locations during lightning and use earthquake-resistant planning and drills.
Learning Objectives
- •Explain electric discharge
- •Explain earthquakes
- •Explain safety is evidence-based
Key Concepts
Electric discharge
A sudden movement of electric charge through air can produce a flash and thunder when charged regions interact.
Earthquakes
Vibrations generated by movement in Earth’s crust travel as seismic waves and may damage structures near the source.
Safety is evidence-based
Protective structures, earthing, open-area choices, emergency supplies, and drills reduce risk during natural events.
Terminology
Historical Insight
Lightning conductor
A properly installed conductor provides a safer path for electric charge to reach the ground and protect a building.
Earthquake drill
Drop, cover, and hold during shaking, then move carefully away from damaged structures after it stops.
Quick Check
Why is thunder heard after lightning is seen?
What is an earthquake focus?
What should people do indoors during an earthquake?
How to use this lesson
Read the overview first, then explain the main idea in your own words before checking the key concepts. Use the quick-check questions without looking at the answer. For examination preparation, verify dates, definitions, and syllabus requirements against your official textbook and school or examination-board guidance.