Structure of the Earth
Plate Movement
Volcanoes
Earthquakes
I'm feeling Lucky!
100
What is the top layer of the Earth called?
Crust
100
Which type of plate movement creates the most damage?
Convergent
100
What comes out of volcanoes?
Lava
100
What causes earthquakes?
Plate Movement
100
Geology is the study of...
...the Earth.
200
Which layer is made of magma?
Mantle
200
What type of plate movement is shown here?
Divergent
200
Where do most volcanoes occur?
Plate Boundaries
200
Where do most earthquakes occur?
Plate Boundaries
200
Alfred Wegener proposed the theory of...
Continental Drift
300
Which element is most common in the crust?
Oxygen
300
Which type of plate movement causes high mountains to be formed?
Converging continental crusts
300
What type of plate movement forms island chains?
Converging
300
The focus of an earthquake is...
...the place where it starts.
300
What mechanism moves the Earth's tectonic plates?
Convection currents
400
Which elements are most common in the inner core?
Iron, Nickel
400
When two oceanic plates are converge, what happens?
The faster moving one will submerge
400
How was Hawaii formed?
Hot spot
400
If two earthquakes measure 5.2 and 6.2 on the Richter scale, how much stronger is the second one?
10 times
400
List the evidence for seafloor spreading.
Age of sediment
Thickness of sediment
Magnetic Striping
500
List the layers of the Earth from top to bottom (inc. lithosphere and asthenosphere).
Lithosphere, Asthenosphere, Mantle, Outer Crust, Inner Crust
500
Name the THREE features produced by converging oceanic and continental plates.
Ocean trench, fold mountains, continental volcanic arc
500
What type of volcano is this?
Shield Volcano
500
Rank earthquake waves in order of speed (fastest to slowest) and also in order of destructive power (most to least).
Fastest - P, S, surface
Destruction - surface, S, P
500
If Australia is moving towards Indonesia at 7cm/year, how many years will it take for us to crash into them? (Indonesia is 3500km North of Australia)
50,000,000 years