Structure Of The Earth Flashcards
1
Q
What’s the Earths surface made out of?
A
floating tectonic plates
2
Q
What is the Mantle made up of?
A
Silicon-based rocks
3
Q
What’s the order of the Earths layers? (Centre to outer)
A
Inner core, Outer core, Mantle, Crust.
4
Q
What are the two types of the Earths crust?
A
- Continental crust (thicker and less dense
- Oceanic crust (thinner and more dense
5
Q
What are Convection Currents?
A
When hot liquid/gas rises, and the cooler (surrounding) liquid/gas moves in to take its place. This repeats as a cycle.
6
Q
Where do tectonic plates meet?
A
Plate margins
