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Welcome to Science 10/31 Happy Halloween

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.

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Welcome to Science 10/31 Happy Halloween

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  1. 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. • Today’s Schedule • 1. Schedule for the upcoming week. • 2. Volcanoes’ Effects on Earth

  2. This Week’s 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

  3. 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

  4. 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

  5. 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. • 2/3’s 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

  6. Yellowstone Supervolcano

  7. III. Explosive Impact • What type of eruption has the greatest effects? • Explosive

  8. III. Explosive Impact • Flows and Fallout • Climatic Changes • Open your book to page 227

  9. .IV Different Types of Volcanoes • The different types of eruptions (quiet/explosive) also cause different types of volcanoes to form.

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

  11. 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

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

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