Crust
- the outer layer of Earth made of solid rock
- thinnest compositional layer
- has liquid water
Mantle
- 80% of earth's volume, thick liquid made of rock.
- thickest layer
- contains 65-80% of earth's mass
- has convection currents
Core
- dense center of the earth
- made of nickel and iron
- has 2 parts inner core/ outer core
Lithosphere
- Earth's crust and solid upper mantle, broken into tectonic plates
- moves on Asthenosphere
Asthenosphere
- The solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows very slowly, which allows tectonic plates to move on top of it
Mesosphere
Beneath the asthenosphere is the strong lower part of the mantle (from the bottom of the asthenosphere to the earth's core)
Outer Core
A layer of molten(liquid) iron and nickel that surrounds the inner core of Earth
- liquid layer of the earth
Inner Core
A dense sphere of SOLID iron and nickel at the center of Earth
Convection Currents
Circular currents in the mantle responsible for the movement of the tectonic plates.
Seismic Waves
The waves produced by earthquakes that tells us about the earths interior.
- tells us how dense/ think and if liquid or solid
- moves faster through solid than a liquid
Difference between oceanic and continental crust
Oceanic crust is denser than continental crust
Compositional Layers
1. Crust
2. Mantle
3. Core
Physical Layers
1. Lithosphere
2. Asthenosphere
3. Mesosphere
4. Outer Core
5. Inner Core
Liquid metal
Outer core is the layer made of
Densest layer
inner core(physical) or core(compositional)
Nickel and iron
Core is made of
Thickest layer
Mantle