Mass Extinction Web Quest
Per: Name/Group: ________________________
1. What is extinction?
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2. How is mass extinction different from extinction?
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3. What was the biggest mass extinction? When did it happen? What % of life was killed?
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4. Compare this extinction to the extinction event that killed the dinosaurs. (What, when, %)
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5. According to the BBC website, what are the common reasons for mass extinction?
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6. According to the Natural History Museum website, what is the most common reason for
mass extinction? Why do you think it is so deadly?
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7. Why do the two websites seem to disagree even though they don’t? (Think cause-effect.)
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8. Name, date, and sketch 3 extinct species that died out at times that are at least 5 million
years different from each other?