Earth Science

Earth Layers
1. The Crust
  1. Line layer we live on. 2 main types- Old (continential) and new (oceanic)
  2. the continential is lighter and always rides above oceanic, when they collide
  3. When plates collide the oceanic goes under and remelts- trenches volcanoes.
  4. Oceanic+Continental plate.
2. Inner Core, Outer Core, Mantle, and Crust
New Oceanic Plate Forming
1. Hot mantle rising.
2. Spread the existing oceanic plate
3. Mantle rock melts (less pressure) forms new plate
Words needed for plate tectonics
1. Plate Tectoincs
  1. Name for theory of earth being made of moving segments
2. Continental Drift
  1. Theory on main old continental plates drifting
3. Subduction Zone
  1. When a continental plate meets and oceanic. Oceanic drives under and remelts
Volcanoes
1. In NZ this would been the most well known activity associated with plate boundaries
2. Why do they Occur?

Resource summary

	Created by arigrace1234 about 11 years ago