Term 2 Science Flashcards
(33 cards)
The surface layer of Earth
Crust
1% of Earths volume
Crust
The thickness of the Crust
6-11 km
The middle layer of Earth
Mantle
84% of Earths volume
Mantle
The thickness of the Mantle
2,900 km
The mantle has 2 layers, they’re called
Inner and Outer Mantle
At the center of Earth
the Core
The Core makes a important field
The magnetic field
What are the two layers of the core
Inner Solid and Outer Liquid
The thickness of the Core
3,450 km
The Core is made up of
iron and nickel
The Mantle is mostly
Silicon Dioxide and Magnesium Oxide
The Crust is mostly Silicon Dioxide which is
Quartz
What is Continental Drift?
The movement of the continents
The name of the one giant continent
Pangea
The Continents drifted apart due to
Convection
It rises and pushes the land apart
Hot Magma
It gets pushed down towards the hot center
Cold Rock
When a fluid(Air or Liquid) is heated it becomes
less dense
When a fluid(Air or Liquid) is cooled it becomes
more dense
When the fluid is heated and becomes less dense it is considered lighter and
moves up
Magma is
rock inside the earth
A dormant volcano means it is
Sleeping and not active
