7th Grade Ch. 1 Sec. 5 Theory of Plate Tectonics
Upcoming SlideShare
Loading in...5
×
 

7th Grade Ch. 1 Sec. 5 Theory of Plate Tectonics

on

  • 3,378 views

 

Statistics

Views

Total Views
3,378
Views on SlideShare
3,378
Embed Views
0

Actions

Likes
0
Downloads
48
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

7th Grade Ch. 1 Sec. 5 Theory of Plate Tectonics 7th Grade Ch. 1 Sec. 5 Theory of Plate Tectonics Presentation Transcript

  • Ch. 1 Sec. 5 Theory of Plate Tectonics
  •  
  • Earth’s Lithospheric Plates
  • separate sections that the lithosphere is broken into plates
  •  
    • driven by convection currents in mantle
    • states that pieces of Earth’s lithosphere
    • are in slow, constant motion
    • geological theory
    Plate Tectonic Theory
    • The continents fit together like pieces of a jigsaw puzzle.
    Plates moving animation
  • 3 kinds of plate boundaries 1. Transform boundary 2. Divergent boundary 3. Convergent Boundary
  • Types of Plate Boundaries
  • 1. transform boundary
    • 2 plates slip past each other
    • move in opposite directions
    • earthquakes occur frequently here
  • transform boundary
  • 2. divergent boundary
    • 2 plates move apart
    • most occur @ mid-ocean ridge
    • when on land- forms rift valley
  • divergent boundary
  • 3. convergent boundary
    • 2 plates converge (come together)
    • result= collision
    • density determines which plate comes out on top
  • convergent boundary
  •  
    • 225 million years ago-
    • Pangaea began to break apart
  • Let's review
  • transform boundary
    • 2 plates slip past each other
    • move in opposite directions
    • earthquakes occur frequently along these boundaries
  • convergent boundary
    • 2 plates converge (come together)
    • result= collision
    • density determines which plate comes out on top
  • divergent boundary
    • 2 plates move apart
    • most occur at mid-ocean ridge
    • when on land- forms rift valley
  • separate sections that the lithosphere is broken into plates