Layers of the Earth
Characteristics
Vocabulary
100

Which layer is the thinnest?

What is the Crust?

100

Located about 6,400 to 5,280 km beneath Earth's surface; it is completely dense and is almost as hot as the surface of the sun.

What is the inner core?

100

These plates move away from each other and allow the asthenosphere to rise towards the surface.

What is a divergent boundary?

200

What layers is the lithosphere composed of?

What are the crust and upper mantle?

200

about 2,900 km thick, it makes up a whopping 84% of Earth's total volume.

What is the mantle?

200

These plates move past each other horizontally.

What is a transform boundary?

300

What theory id associated with the layers of the earth?

What is continental drift?

300

Because of the pressure from the other layers, it becomes solid; what is it called?

What is the core?

300

A hot fluid below or within the earth's crust from while lava and other rocks are formed when cooled.

What is magma?

400

What are the two types of crust?

What is the oceanic and continental crust?

400

Of the three geographic and scientific observations listed below, which supports the theory of continental drift?

1. the continents fit together.

2. similar fossils are found on separate continents.

3. different types of geographical landforms are found all over the world.

What are 1 and 11?

400

This describes large- scale movement of Earth's lithosphere.

What is plate techtonics?