Plate Tectonic Crossword!

What is it called when continents move apart?
Which is the hottest layer of the earth?
What boundary is crashing together?
What boundary is pulling apart?
What boundary is scraping past each other?
Who discoverd plate tectonics?
Which is the most dense of the layers?
What is earths outter shell?
What layer is half liquid half solid
What is the thinest layer?
the theory that the Earth's lithosphere is divided into tectonic plates that move around on top of the asthenosphere
the central, spherical part of the Earth below the mantle
Continental crust is made up of ____________.
A rigid layer formed by the uppermost part of the mantle and the crust together
line that connects points of equal elevation on a topgraphic map
What type of plate boundary forms the Himalayans?
the process by which molten material adds new oceanic crust to the ocean floor
A dark, dense, igneous rock with a fine texture, found in oceanic crust
Earth's Thickest Layer Is...
A valley with steep sides