Plate Tectonics
What does most of the Earth lie on top of?
Tectonic Plates!
The Earth vibrating and moving.
Name 2 things that emit from an erupting volcano
Lava
Smoke
Ash
Poisonous gasses
Rocks
How many layers of the Earth are there?
4
How many types of plate boundaries are there?
3
At which plate boundary can you not experience an Earthquake at?
Trick question! They happen at all plate boundaries.
At which plate margin do you usually NOT find volcanoes at?
Conservative plate boundaries.
Name the layers of the Earth
Inner Core
Outer Core
Mantle
Crust
Name the plate boundaries
Conservative
Constructive
Destructive
What causes an Earthquake?
Tectonic plates getting stuck or moving past one another
What's the difference between a dormant and an extinct volcano?
A dormant volcano can still erupt but an extinct volcano can no longer erupt.
The inner core is mostly made up of what?
Molten iron and nickel
The Mid Atlantic Ridge rests on top of what type of plate boundary?
A divergent plate boundary
The center of an Earthquake, on the SURFACE of the Earth is called the....?
Epicenter
What are the 4 main reasons that people live by volcanoes?
Tourism
Rare minerals
Geothermal Energy
Fertile Soil
Which layer of the Earth is the thickest?
The mantle
When an oceanic plate gets sucked under a continental plate, what is this called?
Subduction
Earthquakes happen because of tectonic plates but what, from the tectonic plates, causes an earthquake?
A sudden release of energy and pressure
Categorise these into primary and secondary impacts
Lava caused 1,000 people to die
The ash caused the sky to darken
Roads were closed due to falling rocks
Refugees ended up starving due to a lack of food
Primary
Lava caused 1,000 people to die
The ash caused the sky to darken
Roads were closed due to falling rocks
Secondary
Refugees ended up starving due to a lack of food
How thick is the crust?
Only around 70 kilometers