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6. under the upper mantle there is a goo like substance called?

  • asthenosphere
  • lithosphere
  • convection

7. in the earths layers, the rock cycle is otherwise known as?

  • periodotite
  • convection
  • lava churn

8. what is the outer and inner core made of?

  • periodotite (molten rock and gases)
  • basalt and granite
  • iron and nickle
  • copper and steel

9. Oceanic can sink/be pushed into the mantle?

  • True
  • False

10. continental makes continents and is made of granite?

  • True
  • False

11. a destructive plate boundary...

  • has two plate moving apart
  • has oceanic crust that moves towards continental crust
  • involves two plates moving together

12. which is heavier, oceanic crust or continental crust?

  • oceanic
  • continental

13. a collision margin is when...

  • plates move together, both continental crust
  • plates move apart
  • plates rub past eachother

14. constructive is where?

  • plates pushed under
  • plates move apart
  • plates move towards
  • plates move against

15. conservative plates..

  • move together
  • slide past eachother
  • hit eachother

16. why is the inner core so hot?

  • when the earth was created it hit rocks upon rocks which builds up pressure until it exploded (big bang) the crust cooled but the inside is still hot
  • because molten lava is spewing from active volcanoes, it shows its hot inside the earth which is caused by radioactive decay of elements in the core
  • because pressure builds up as the world spins

17. why doesn't the inner core melt?

  • its under too much pressure and theres no room for it to melt
  • too much pressure
  • something that is a boiling liquid cannot melt

18. what creates northon lights?

  • charged particles hit the earths magnetic field which bounce off creating colours which are the northon lights
  • the pressure of the magnetic field sends out rays- northon lights

19. what is the outer core?

  • hot molten rock and gas that move in circular motions
  • metal liquid that moves around creating a magnetic field around the world which protects us from the suns atems
  • its the pressure that pushes down on the inner core to stop it from melting
  • protecting of the inner core

20. all volcanoes are found at plate edges?

  • False
  • True