PLATE TECTONICS Crossword

A solid sphere in the middle of the fluid core
The gradual movement of the continents across the earth's surface
The concept that new oceanic crust is created at the mid-ocean ridge as a result of divergence between plates.
A long, narrow but very deep depression in the ocean floor
The theory that the earth's surface is divided into a few large, thick plates that are continually moving
The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
A crack in the Earth's crust
A linear feature that exists between two tectonic plates that are moving away from each other
A continent formed 250 million years ago due to plate movement
The mass per unit volume of a substance at a specified pressure and temperature
A liquid layer about 2,260 km thick
A boundary in which two plates slide past each other without creating or destroying lithosphere
One of the sections of the earth's lithosphere constantly moving in relation to the other sections
Two plates of the lithosphere coming closer together from two different directions
A current in a fluid that results from convection
A zone of the Earth's mantle that lies beneath the lithosphere
The layer of the Earth between the crust and the outer core
A theory that explains scientific observations
The site where tectonic plates move apart and new oceanic crust is created
Waves of energy that travel through the core of the Earth
The solid, outermost layer of the Earth lying above the mantle
The solid outer part of the Earth, including the crust and uppermost mantle