To understand how plates move, here are more details about the Earth’s crust:
Lithosphere- made up of the crust and very top of the mantle- also known as a tectonic plate
Asthenosphere- hotter, softer layer of rock on which the lithosphere rests.
Ocean crust is ______Continent crust is ____
Label your drawing
Continental Drift-Alfred Wegener said that the continents used to be all together in one large landmass called: Pangaea
Evidence: Similar rocks and Similar fossilson different continents
Can you create Pangaea?
The Seafloor is spreading apartMid-Atlantic ridge- underwater mountain range
formed by convection currents in the asthenosphere
1. Divergent Boundarya. Ocean-ocean pulling apartb. Forms underwater mountain rangec. Mid- Atlantic Ridge
1. Divergent boundarya. Continent- continent pulling apartb. Forms a rift valleyc. Africa- Great Rift Valley
2.Convergent-a. ocean-ocean coming togetherb. Forms a trench and subduction zone Forms volcanic islandsc. Japan
2.Convergent Boundarymoving together
a. Continent- continent coming togetherb. Forms mountainsc. Himalayas- Mt. Everest
2. Convergent Boundarya. Ocean- continentb. Forms a trench and volcanic mountainsc. Washington State and Andes mountains in
South America
3.Transform boundarysliding past each other
b. Forms earthquakesc. San Andreas Fault in California
Identify each drawing as divergent, convergent or
transform