8th Grade - Mountain building! Dynamic Earth U4L3

The movement of tectonic plates causes stress! Stress = the amount of force per unit placed on an object When a rock is placed under stress it can deform. What is deformation? When rocks bend they form ______________. When rock break it forms ______________.

What are two kinds of folds? Do not write in this box

Syncline or anticline? Mojave Desert, California Saint-Godard-de-Lejeune, Canada Rocky Mts. Alberta, Canada New Jersey

What are the three kinds of faults? Just list them. We will describe them on the next few slides.

Normal Faults

Reverse fault

Strike-slip faults

Folded mountains Mt. Kidd: Canadian Rockies

Volcanic mountains Mt. Fuji: Japan

Fault-block mountains Teton Range: Wyoming

8th Grade - Volcanoes Dynamic Earth U4L4

Opening in earth that erupts gases, ash, and/or lava. Volcano Opening in earth that erupts gases, ash, and/or lava.

- Volcanic Eruptions

How do volcanoes form? Rocks in mantle melt to form _MAGMA__ which rises because it is less dense than surrounding rock. (Pressure can also help force magma upward.) Volcanoes form when magma flows out of surface opening called a ____volcano___; a depression around vent is called a __vent__.

Parts of a Volcano

What comes out of a volcano?

types of Volcanoes Shield Volcano

Cinder Cone Volcano

Paricutin Paricutin

Composite Volcano

Mount Rainer Mt. Rainier

- Volcanic Landforms

Volcanic features: fissures and Lava plateaus

Volcanic features: craters and calderas

Where do volcanoes form? Divergent boundaries

Volcano at Divergent Boundary

Where do volcanoes form? Convergent boundaries

Volcano at Convergent Boundary Formation of Volcano

Where do volcanoes form? Hot spots

Why are the Hawaiian Islands in a line? Will there be more?

Location Map of Volcanoes