Earth layers, Characteristics, Plate tectonics, and Convection current Flashcards
The earth is divided into 4 layers which are
Inner Core, Outer Core, Mantle, Crust
The Crust is the thinnest and makes up …% of the earth and is broken into many pieces called…
- 1%
- Plates
The Crust’s thickness is about…
5-100 km
There are 2 types of crust which are
Oceanic: Very dense, made of basalt
Continental: Less dense, made of granite
The mantle is the largest/smallest layer of the earth and is divided into two regions which are…
- Largest
- Upper and Lower sections
The Outer Core is solid/liquid/gas and is made up of steel/iron/a bunch of metals squeezed together
- Liquid
- Iron
The Inner Core is solid/liquid/gas and is made up of steel/iron/a bunch of metals squeezed together
- Solid
- A bunch of metals squeezed together
The Physical Structure of the Earth has two parts which are…
Lithosphere and Asthenosphere
Lithosphere is the
Asthenosphere is the
Rigid outer layer (crust)
Solid rock that flows slowly (like hot asphalt)
Tectonic Plates:
Earth’s crust is broken into about … pieces
These plates move on top of the
- 19
- Asthenosphere
The three movements of plates are
Away from each other
Toward each other
Past each other
When Plates move together they form
Mountains or Volcanoes are formed
When Plates move past each other what occurs
Earthquakes
Which layer is the hottest
Inner Core