The Appalachian and Caledonian mountains are the SAME mountains. Why is half the mountain chain in N. America and the other half is in Europe?
How does this picture explain what we are studying? The colors show where we have found these 4 types of fossils.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
__________ are areas where plates collide with denser plates sinking below less dense plates. Volcanoes are often formed because of this. | arrow_right_alt |
seafloor spreading |
New oceanic crust is formed at mid-ocean ridges. This happens through the process of __________. | arrow_right_alt |
convection current |
Hot magma rising and cold magma sinking causes a __________ resulting in continental drift. | arrow_right_alt |
tectonic plates |
The lithosphere is broken up into __________. | arrow_right_alt |
subduction zones |

Organize earth's layers from outer to inner
crust
inner core
mantle
outer core