Overview
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Explore a detailed 17-minute educational video examining the catastrophic events that led to the dinosaurs' extinction 66 million years ago. Learn about the sequence of devastating effects following the asteroid impact, including the initial broiling of Earth's surface, global darkness blocking photosynthesis, impact winter, release of toxic chemicals, dramatic global warming, acid rain, and ocean acidification. Discover how these interconnected catastrophes affected both marine and terrestrial life, examine the scientific evidence supporting the asteroid impact theory, and understand how life eventually recovered from this mass extinction event. Delve into recent research that suggests a potential missing link in our understanding of this pivotal moment in Earth's history, supported by references from contemporary scientific literature and expert sources.
Syllabus
Impact & Timing of KPg Extinction
Evidence of Asteroid Impact
How an Asteroid Killed the Dinos
1. The Broil
Blocked Sunlight & Photosynthesis
2. Impact Winter
3. Toxic Chemicals
4. Global Warming
How an Asteroid Caused Warming
How Warming Affected Life
5. Acid Rain
6. Ocean Acidification
Recovery of Life after KPg
Missing link?
Taught by
GEO GIRL