Welcome to Science 10/31 Happy Halloween

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Welcome to Science 10/31 Happy Halloween

• Some scientists believe that volcanoes played a
  role in the extinction of the dinosaurs. Some
  scientists also have said that volcanoes could
  play a major role in the future of mankind.
• On your paper write your prediction for how
  volcanoes could affect the future of human
  beings.
• Todays Schedule
• 1. Schedule for the upcoming week.
• 2. Volcanoes Effects on Earth

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This Weeks Schedule

• Monday- Ch. 9 Sec, 2 Volcanoes Effects on Earth
• Tuesday- Types of Volcanoes Lab
• Wednesday- Ch. 9 Sec. 3 What causes volcanoes?
• Thursday- Volcano Pre-Test/How the Earth was Made
• Friday- Volcano Pre-Test/How the Earth was Made
• Next Monday- Review
• Next Tuesday- Ch. 9 Volcanoes Test

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I. Volcanoes Effects on Earth

• How do volcanoes effect the Earth and life on the
  Earth?
• Destroy landforms
• Build new land
• Change the climate
• Kill plants and animals

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II. Why is it important that we know the effects
volcanoes cause?

• So we can be prepared.
• So lives can be saved.
• Assignment Discovery Shorts Man vs. Volcano
  Video Discovery Channel

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Yellowstone Supervolcano

• 1,000 times more powerful than Mt. St. Helens.
• Ash 10 ft. deep would cover the ground for up to
  1,000 miles away.
• 2/3s of the U.S.A. would become uninhabitable
  due to toxic gasses.
• Air travel would stop across the U.S.A.
• Millions of people would be homeless.
• Assignment Discovery Shorts Yellowstone?s Super
  Eruption Video Discovery Channel

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Yellowstone Supervolcano
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III. Explosive Impact

• What type of eruption has the greatest effects?
• Explosive

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III. Explosive Impact

• Flows and Fallout
• Climatic Changes
• Open your book to page 227

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.IV Different Types of Volcanoes

• The different types of eruptions
  (quiet/explosive) also cause different types of
  volcanoes to form.

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Shield Volcanoes

• Shield Volcanoes- form when layers of low
  viscosity lava harden on top of previous layers.
  A wide gently sloping mountain forms.

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Cinder Cone Volcanoes

• Cinder Cone Volcanoes- form when ash, cinders,
  and bombs build up around the vent in a steep,
  cone shaped hill.
• Assignment Discovery Shorts Paricutin Video
  Discovery Channel

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Composite Volcanoes

• Composite Volcanoes- tall, cone-shaped mountains
  in which layers of lava alternate with layers of
  ash.