Tectonic Plates Crossword

What plate boundaries cause earthquakes to occur most?
What is another name for a spreading boundary?
What was the name of the combined continents in one landmass?
Where do scientists believe in Earth's layers are convection currents?
What helps explain continental drift in the theory of plate tectonics?
What large bodies of magma are forced upward through Earth's mantle and crust?
Where do volcanoes on Earth usually form along?
What are earthquake waves called?
What point on Earths surface is located directly above the earthquakes focus?
What tool do scientists use to obtain a record of seismic waves from all over the world?
What is the surface of such a break along which rocks move?
What waves are the slowest and largest of the seismic waves?
Which seismic wave travels the fastest through rock material?
What are vibrations felt as?
What would build up if tectonic plates collided and stopped moving?
What do rift fractures serve as for magma originating in the mantle?
What tool measures the intensity of an earthquake?
What is the range of intensity spans measured as?
What happens to faults when rocks change shape by breaking?
When rocks are compressed what fault may form?