1. Layers of the Earth: Flashcards

2. The structural layer that is the source of Earth’s magnetic field.
Outer Core

3. 2. The layer of Earth that “flows”.
Asthenosphere 

4. 3. The structural layer found below the asthenosphere.
Mesosphere 

5. 4. The structural layer that is made up of solid mantle rock.
Mesosphere

6. The structural layer that is made of melted iron and nickel.
Outer Core 

7. 6. The thicker type of crust.
Continental

8. 7. This layer makes up 2/3 of Earth’s mass.
Mantle 

9. 8. The compositional layer found on the surface of the earth.
Crust 

10. 9. The layer that has convection currents that moves the plates.
Asthenosphere 

11. 10. The thinner type of crust.
Oceanic 

12. 11. The older type of crust.
Continental

13. 12. Structural layer made up of the crust and the upper part of the mantle.
Lithosphere 

14. 13. The less dense type of crust.
Continental 

15. 14. The layer that contains magma.
Asthenosphere/ mantle 

16. 15. The layer that makes up Earth’s tectonic plates.
Lithosphere 

17. 16. Structural layer that is a solid metal ball in the center of the Earth.
Inner Core 

18. 17. The youngest type of crust.
Oceanic 

19. 18. The compositional layer made up of iron and nickel.
Core 

20. 19. The compositional layer that is under the crust.
Mantle 

21. 20. The three compositional layers.
Crust, Mantle, Core

22. 21. The five structural layers.
Lithosphere, asthenosphere, mesosphere, outer core, inner core

23. 22. Layers divided by what they are made of.
Compositional

24. 23. Layers divided by how they work.
Structural 

25. 24. The top structural layer.
Lithosphere 

26. 25. The middle compositional layer.
Mantle

27. 26. The innermost compositional layer.
Core

28. 27. The innermost structural layer.
Inner Core

29. 28. The “middle” layer.
Mesosphere

30. 29. The thinnest compositional layer.
Crust