The Dynamic Earth

The ________ is the layer of rock between Earth's Crust and core?

• inner core

• mantle

• lithosphere

_________ is the theory that explains how large pieces of Earth's outermost layer move and change shape.

• Plate tectonics

• folding

• volcanoes

________ is the bending of rock layers due to stress.

• earthquake

• folding

• plate tectonics

A(n) _____________________ is a vent or fissure in Earth's surface through which magma and gases are expelled.

• earthquake

• mantle

• volcano

A(n) ______________ is a movement or trembling of the ground that is caused by a sudden release of energy when rocks move along a fault.

• volcano

• earthquake

• plate tectonic

Which of the following is a major difference between Earth's inner core and outer core?

• The inner core is liquid, and the outer core is solid

• The inner core is solid, and the outer core is liquid

• The inner core is gas, and the outer core is solid

• The inner core is solid, and the outer core is gas.

Earth can be divided into 5 layers; the lithosphere, the asthenosphere, the mesosphere, the outer core, and the inner core. Which properties are used to make these divisions?

• compositional layers

• physical properties

• chemical properties

• elemental properties

What are the 3 chemical layers of the Earth?

• Crust, mantle, core

• crust, mantle, asthenosphere

• lithosphere, mantle, core

• Lithosphere, asthenosphere, core

The table identifies the relationship between the strength of earthquakes and how often earthquakes happen. Approximately how many earthquakes classified as strong to moderate happen each year?

• 1000

• 1100

• 120,000

How does forces from tectonic plates build folded mountains?

• the movement of tectonic plates produces stress that causes rock to deform.

• Fault-block mountains can also form when tension from divergent boundaries causes faults, and the block of rock on either side of the fault move up or drop down relative to other blocks.

• Sometimes volcanic activity beneath Earth's surface causes magma to move upward toward Earth's surface. The forces associated with upwelling can cause uplift of the crust.