Restless Earth - Tectonics Plates Flashcards
The centre of the earth contains ?
The core filled with solid iron and nickel
The earths’s surface is separated into?
Tectonic plates
Around the core is ?
The mantle, which is semi molten rock, moves slowly
The crust of the world is divided ?
Into Slabs known as tectonic plates
Continental crust is ?
Thicker and less dense
Oceanic crust is ?
Thin and more dense
Why do the tectonic plates move ?
This is as they float on the moving mantle
The place where plates meet I known as ?
A Plate margin or boundary
A destructive margin is when ?
Two plate move towards each other, the denser plate is forced down into the mantle and destroyed
The constructive margin is where ?
The two plates move away from each other and magma rises and cooks filling gap
What happens at the conservative margin?
This is where two plates move sideways past each other ( same direction different speeds or opposite directions)