Earth's Structures Test Review

Which layer of the earth is divided into tectonic plates?

What happens at mid-ocean ridges?

The deep interior of the Earth can be mapped using

Which of these did NOT provide evidence for continental drift?

What is compression?

Which of the following layers is liquid?

Who developed the hypothesis of continental drift?

What type of seismic waves travel fastest?

About how long ago do scientists believe the solar system was formed?

Which layer of the earth is made of molten metal?

What was the ancient continent that existed when all of the continents were joined together?

New oceanic lithosphere forms as a result of

What are underwater mountain ranges that occur where sea-floor spreading takes place?

What type of boundary is formed when plates separate?

What type of boundary is formed when plates collide?

What is a machine that measures the arrival times of seismic waves arrive?

Seismic waves travel through Earth’s layers at different speeds depending on the

The fact that similar fossils are found on both sides of the ocean is evidence of

How many compositional layers is the earth divided into?

What is the process where new oceanic crust forms as magma rises to the surface and solidifies?

What are vibrations called that occur during an earthquake?

What is the area where two tectonic plates meet called?

What is a block of lithosphere that consists of the crust and the outermost part of the mantle?

What is the hypothesis that the continents are moving apart from one another?

Tectonic plates slide on what layer of the earth?