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Katie YatskoExtinction/Mass Extinction

Science Presentation
by

Katie Yatsko

on 5 December 2011

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Transcript of Katie YatskoExtinction/Mass Extinction

EXTINCTION Late Devonian End Permian By Katie & Katie
(Potter & Yatsko) End Cretaceous ex·tinc·tion/ikˈstiNG(k)SHən/Noun
1. The state or process of a species, family, or larger group being or becoming extinct.
2. The state or process of ceasing or causing something to cease to exist. There have been five mass extinctions scince life on earth began. Date: 370 mya
Impact: 50%
Cause: Glaciation of Gondwana
Fact: More than 100 familys of marine invertebrates wiped out Close Call Future Extintion Work Cited Date: 445 mya
Impact: 57%
Cause: Global cooling/Glaciation
Fact: Mostly Marine Life Late Ordovican Date: 250 mya
Impact: 83%
Cause: Probably Glaciation
Fact: Largest extintion in earth's history Date: 200 mya
Impact: 48%
Cause: Climate change
Fact: Beginning of the dinosaurs End Triassic Date: 65 mya
Impact: 50%
Cause: Meteorite Impact
Fact: Killed the Dinosaurs Date: 73,000 years ago
Impact: Most humans
Cause: Volcanism There have been many predations with no scientific reasoning (May 21, 2012, ect.) Many thing such as climate change, super volcanoes, meteors, ect. are scientific possibilities for the next mass extinctions which might include us. "End-Triassic Extinction -- Britannica Online Encyclopedia." Encyclopedia - Britannica Online Encyclopedia. Web. 31 May 2011. <http://www.britannica.com/EBchecked/topic/1523109/end-Triassic-extinction>.
"Extinction Level Event-Closing in on the Past/Future Timeline, Page 1." AboveTopSecret.com - Conspiracy Theories, UFOs, Paranormal, Political Madness, and Other "Alternative Topics" Web. 31 May 2011. <http://www.abovetopsecret.com/forum/thread666266/pg1>.
"Timeline : Discovery Earth : Discovery Channel." Discovery Channel : Science, History, Space, Tech, Sharks, News. Web. 25 May 2011. <http://dsc.discovery.com/earth/wide-angle/mass-extinctions-timeline.html>. "End-Triassic Extinction -- Britannica Online Encyclopedia." Encyclopedia - Britannica Online Encyclopedia. Web. 31 May 2011. <http://www.britannica.com/EBchecked/topic/1523109/end-Triassic-extinction>. "Extinction Level Event-Closing in on the Past/Future Timeline, Page 1." AboveTopSecret.com - Conspiracy Theories, UFOs, Paranormal, Political Madness, and Other "Alternative Topics" Web. 31 May 2011. <http://www.abovetopsecret.com/forum/thread666266/pg1>. "Timeline : Discovery Earth : Discovery Channel." Discovery Channel : Science, History, Space, Tech, Sharks, News. Web. 25 May 2011. <http://dsc.discovery.com/earth/wide-angle/mass-extinctions-timeline.html>.
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