Some scientists believe that volcanoes played a role in the extinction of the dinosaurs. Some...

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

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

How do volcanoes effect the Earth and life on the Earth?

Destroy landformsBuild new landChange the climateKill plants and animals

So we can be prepared.So lives can be saved.Assignment Discovery Shorts: Man

vs. Volcano : Video : Discovery Channel

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

What type of eruption has the greatest effects?

Explosive

Flows and FalloutClimatic ChangesOpen your book to page 227

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

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

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

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