Plate Tectonics

The inner and outer core are both made up of

• nickel

• liquid gold and silver
• iron and nickel

• gaseous oxygen and nitrogen

1. Is a deep valley along the ocean floor through which the oceanic crust is subducted.

• Sea Trench

• Canyon
• Ridge
• Plateau

The crust and the upper mantle make up the

• troposphere
• asthenosphere
• hydrosphere
• lithosphere

As you travel to the core the temperature, pressure and density all

• decrease
• increase
• stay the same
• fluctuate

List the layers of the earth in order from the inside to the outside. (be specific)

• Inner core

• Outer core

• Mesosphere

• Asthenosphere

• Lithosphere

?Alfred Wegener proposed the?

• theory of plate tectonics
• theory of ocean currents
• theory of magnetic field reversal
• theory of continental drift

What is the single landmass that split apart into all of the continents today?

• Pangaea
• Atlantis
• Laurasia
• Gondwana

What is formed when 2 continental plates pull apart?

• Convergent boundary
• Transform boundary
• Subduction zone
• Rift Valley

When 2 of Earths plates slip past each other, moving in opposite horizontal directions. What boundary is created?

• convergent boundary
• divergent boundary
• subduction boundary
• transform boundary

When the lithosphere is broken into sections it is called?

• Tectonic plates

• Continental drift
• Earthquakes
• Volcanoes