Earth's Layers and Plate Tectonics Crossword

What is the outer layer of the earth?
Which of the earth's layers consists of molten rock?
What is the third layer of earth?
Which of earth's layer is made only of solid iron?
Which crust layer on earth is thinner?
Which crust layer on earth is thick?
Earthquake waves travel at a slower speed prior to reaching this boundary?
Which layer is composed mostly of silicate rocks rich in magnesium and iron?
Which mantle is composed chiefly of magnesium- and iron-bearing silicates?
What are the circular patterns that arise from the unequal heating and cooling of a fluid (gas or liquid)?
What is the solid outer section of Earth?
What is plastic-like viscous rock; more solid closer to core?
What is a hypothetical supercontinent that included all current land masses?
What is the boundaries where two of those plates are moving away from each other?
What boundaries form when two crustal plates are colliding?
What boundaries mark the collision between two of the planet's tectonic plates?
What is a term for fracture or a break in the ground?
What are more likely to occur along active plate boundaries?
What is a wave caused by an earthquake, submarine landslide, or other disturbance called?
What is formed when hot molten rock, ash and gases escape from an opening in the Earth's surface?
What boundary is a fault zone where two plates slide past each other horizontally?