Show:
Crust
Mantle
Outer core
Inner core
Other
10
What are the two types of the Earth's crust?
Oceanic and Continental.
10
How thick is the Mantle?
The mantle is about 2900 km thick.
10

The outer core is the only ______ Layer

Liquid

10

Why is the Inner core solid? 

The pressure is so high the atoms are pressed together to form a solid. 

10

Who proposed the idea of Continental Drift?

Alfred Wegner

20

How thick is the Earth's crust?

5-75 km thick

20

What is one word to describe the upper mantle. This word relates to the ability for a solid to move like a liquid. 

Plasticity 

20
What is the Outer core composed of?
It is composed of liquid iron and nickel.
20
What is the Inner core composed of?
It is composed of solid nickel and iron.
20

What is the last super continents name? 

Pangaea

30
The crust of the Earth is broken into many pieces called what?
Tectonic plates.
30

How does the Temperature change as you go from the top of the mantle to the bottom? 

It Increases

30

How do we know that the outer core is a liquid? 

S waves can't travel through the outer core. 

30

Why does the inner core have the most dense materials? 

The most dense material "Sinks" to the bottom. Which when looking at the Earth is the center. 

30

What are the 4 pieces of evidence that Wegner discovered? 

Fossil, Puzzle, Climate, and Geologic Evidence

40

The Crust and upper most part of the mantle make up what? 

Lithosphere

40
What causes the Mantle's "flows"?
Convection currents.
40
Why is the iron and nickel in a liquid state in the Outer core?
Because the inner core melts all of it by the time it reaches the outer core.
40

Who watches Mr. Brantley's daughter when he is teaching? 

His Brother. 

40

What was discovered that proved Wegner's theory? 

Seafloor Spreading.

50
What do the plates float on?
The plates float on the soft, plastic mantle which is located below the crust.
50

What are the two layers of the Mantle?

Asthenosphere (Upper Mantle) and the Lower Mantle

50
What sort of field does the outer core create?
A magnetic one.
50
Why doesn't the metal ores in the Inner core melt?
Because of the amount of pressure that there is in the inner core.
50

What was the name of the new Theory proposed after Continental Drift? 

The Theory of Plate Tectonics.