Our Changing Earth

What type of boundary is formed when plates separate?

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

What is the process called where one plate slides under the other forming a volcano?

Where do Earthquakes typically occur?

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

What causes BIG earthquakes?

Which layer of the earth is divided into tectonic plates?

Which is the correct sequence magma moves through inside a volcano?

What is the thickest layer of the Earth?

Which boundary allows new oceanic crust to form as magma rises to the surface and solidifies?

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

What layers of Earth are solid?

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

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

Who developed the hypothesis of continental drift?

Which boundary created the San Andreas Fault?

Which of the following layers is liquid?

Which plate tectonic movement created the Mariana Trench?

What type of boundary is formed when plates collide?

What is the difference between Magma and Lava?

Which layer of the earth is made of molten iron and metal?