Plate Tectonics

Which layer of Earth is the innermost or central part just below the mantle?

• crust

• lithosphere

• core

• asthenosphere

What is the name of Earth's top layer that is made up of a variety of igneous, sedimentary, and metamorphic rocks?

• asthenosphere

• core

• mantle

• crust

Which layer of Earth is between the crust and the core? Convection currents occur here due to differences in temperature within this layer.

• inner core

• mantle

• outer core

• Pangea

What is the term given to the rigid outer part of Earth that includes the crust and upper mantle? This is where the tectonic plates are located.

• core

• asthenosphere

• lithosphere

• upper crust

These layers found in the lithosphere can move, float, and sometimes fracture. What do we call these massive, irregularly shaped slabs of rock?

• volcanoes

• Pangea

• earthquakes

• tectonic plates

What is the term given to describe the slow movement of the continents across the Earth's surface over a long period of time?

• continental drift

• tectonic plates

• transform boundaries

• convective flow

Which term describes the continuous transfer of heat in liquids or gases that rotates in a circular motion?

• conduction

• convective flow

• convergent boundary

• transform boundary

What is the name given to the hypothetical supercontinent that includes all of the current land masses on Earth?

• North American plate

• Continental drift

• Alfred Wegener

• Pangea

Which boundary describes two lithospheric plates that slide or grind past one another?

• divergent

• convergent

• transform

• convective

Which boundary describes two lithospheric plates that move towards one another?

• divergent

• convergent

• convective

• transform