Hazardous Earth

Question 1

Continental crust

Answer 1

This forms the land on Earth, mostly made of granite and is usually between 30-50km thick

Question 2

Oceanic crust

Answer 2

Crust underneath the ocean which is a lot thinner than continental crust but more dense.

Question 3

Lithosphere

Answer 3

The continental crust and the oceanic crust

Question 4

Asthenosphere

Answer 4

Upper layer of the mantle, partially molten lubricates lithosphere

Question 5

Tectonic plates

Answer 5

Separate pieces of the lithosphere

Question 6

Mantle

Answer 6

Solid and largest layer of the Earth

Question 7

Plume

Answer 7

When heat from a convection cell moves towards the surface of the Earth. Plumes can lead to: Hot spots; volcanoes in the middle of tectonic plates. (Can also be found at constructive boundaries).

Question 8

Geo thermal

Answer 8

Heat from the Earth

Question 9

Radioactive decay

Answer 9

Some elements are naturally unstable and radioactive. Atoms of these elements release particles that give off heat.

Question 10

Convection currents

Answer 10

Are currents in the outer core that move the crust on the surface

Question 11

Continental drift

Answer 11

The idea that the Earth’s tectonic plates move

Question 12

Pangea

Answer 12

Super continent that existed on Earth 250 million years ago