Sci+Unit+3+Earth+Structure

Plate Tectonics The Earth's plates sit on a dense, hot, somewhat melted layer of the Earth. The plates move very slowly, pressing against one another in some places and pulling apart in other places, sometimes scraping alongside each other as they do. Mountains form as two continental plates, or an ocean plate and a continental plate, press together. There are worldwide patterns to major geological events (such as earthquakes, volcanic eruptions, and mountain building) that coincide with plate boundaries. Lithospheric plates on the scale of continents and oceans constantly move at rates of centimeters per year as a result of movements in the mantle coupled with characteristics of the plates themselves. Major geological events, such as earthquakes, volcanic eruptions, and mountain building, result from these plate motions. The crustal plates range in thickness from a few to more than 100 kilometers. Ocean floors are the tops of thin oceanic plates that spread outward from mid-ocean rift zones; land surfaces are the tops of thicker, less-dense continental plates. Earth is made up of 4 different layers: inner core, outer core, mantle, crust. Seismologists have studied how wave energy travels through the different layers of Earth. Waves have characteristics: frequency, wavelength, amplitude and speed. During an earthquake, energy is released into the Earth as: Primary waves, Secondary waves and Surface waves.
 * 6.E.2.2 **

The Earth is composed – primarily- of rock. Three-fourths of the Earth’s surface is covered by a relatively thin layer of water (some of it frozen), and the entire planet is surrounded by a relatively thin layer of gas we call the atmosphere. The Earth has a solid inner core that is surrounded by a liquid outer core. The inner core is a solid section of the Earth and is unattached to the mantle, being suspended by the molten outer core. The inner core is predominantly iron metal with significant amounts of the element nickel. This inner layer in mutual combination with the rotational motion of the Earth creates a dynamo effect where a force field is generated. This field is also known as Earth’s magnetic field. In terms of the physical aspects of the outer core, the layer is dense but not as dense as pure molten iron. Surrounding the entire dense, metallic core is a thick, hot, convective layer called the mantle. The crust consists of many continental and oceanic plates that have slowly moved and changed positions on the globe throughout geologic time.
 * 6.E.2.1 **

__**Pangea and Plate Tectonics**__
A demonstration of plate boundary types Greatest Discoveries with Bill Nye (0:00-19:00) (Harry Hess and Sea Floor Spreading)
 * Animations of how plate boundaries interact**
 * Plate Boundaries Interactive: Slip, Slide, and Collide**
 * Pangaea with Individual Countries**
 * Recap of Sea Floor Spreading**

=__**Earthquakes**__= Daily Earthquake Map Daily Earthquake List Animations of how the faults move Picture illustrating all earthquakes since 1898 above a 4.0 magnitude Earthquake Hazards

=**__Tsunamis__**= [|Tsunami] Animation

=**__Volcanoes__**= [|What is a volcano?] [|The Three Types of Volcanoes] - Be sure to click through the pictures to see examples

=
Where is the world's largest volcano? Right [|here] and [|here.]=====

[|Rivers of Lava in Hawaii]
Ring of Fire Documentary

=__**Songs**__=
 * Continental Drift Song (Alfred Wegener)**

The Crust is in Pieces Song
Pangea and Plate Boundaries Song Plate Boundary Rap It's an Earthquake Song

Sea Floor Spreading Worksheet:
Plate Tectonics Worksheet: Fault/Stress Types Worksheet:

Earthquake Labs

Watch the earthquake video on BrainPop (**raise your hand to report your quiz grade before moving onto the next activity).
=Complete the Virtual Earthquake Lab= ==Use this slideshow to complete the earthquake damage worksheet.== =Use this map of CA to plot faults and earthquakes.=

Test Review Plate Tectonics Jeopardy Game

Earthquakes and Volcanoes Vocabulary Review Game
=Plate Tectonics Kahoot= =Earthquakes Kahoot= =Earthquakes Kahoot #2=

=Units 1-5 review=