The Earth's Surface

• What is the structure of the earth


  label them.

  A) Crust

  B) Mantle

  C) Outer Core

  D) Inner Core

  
• What are convection Currents?


  Convection currents occur when magma is heated and it rise to the crust. it cools when it gets closer to the crust and goes to the side and goes down. This process causes friction between the magma and the crust and pulls the plates
• What are the different plate tectonics?


  Separating Plates, Colliding Plates, Sliding Plates.
• What plate causes fold mountains and volcanic mountains?


  Colliding plate.
• What plate causes earthquakes?


  Sliding plates.
• What are the types of volcano's?


  Active, Dormant, Extinct.
• What are positive impacts of volcanoes


  More fertile soil and more tourists.
• What are the negative impacts of volcanoes?


  Produces sulfur dioxide and lava can destroy anything in its path.
• What are the different features of a earthquake?


  Plate movement, epicentre, focus, seismic waves

  A) Focus

  B) Seismic waves

  C) epicentre

  D) Plate movement

  
• What is the focus?


  The place where the earthquake begins beneath the earth's surface.
• What is the epicentre?


  The point on the Earth's surface directly above the focus of an earthquake.
• What is the instrument used to measure earthquakes?


  Seismograph
• What are fold mountains?


  Fold mountains are mountains that form when two tectonic plates collide and the Earth's crust is compressed and folded.