Hazardous Earth

Question 1

Name the Layers of the Earth

Answer 1

Inner Core, Outer Core, Lower Mantle, Upper Mantle, Asthenosphere, Lithosphere and Crust.

Question 2

Continental Crust

Answer 2

Forms the Land, 30-50km Deep (thick), Made of Granite and Low Density.

Question 3

Oceanic Crust

Answer 3

Under the Oceans, 6-8km deep (thin), Made of Basalt and High Density

Question 4

Convection Currents and Continental Drift

Answer 4

• Convection currents rise from being heated by the mantle.
• As the currents get further away it cools down.
• It starts to fall back down and pulls the plates in the direction they go
• The plates will either crash together or move apart
• This process repeats

Question 5

Hotspot Volcanoes

Answer 5

• The mantle plume makes it’s way through the Crust
• The mantle plume goes through the Crust, erupting and cooling into rock
• The process repeats and the volcano breaks to the surface
• As the tectonic plates move, so does the hot spot
• The process keeps repeating and a chain of volcanoes forms