earth

• what is pangaea


  when all of the continents were connected as one landmass
• what were the two land masses know as when Pangaea split

  laurasia and gondwanaland
• what is continental drift


  when all the countries are moving apart
• what are the four layers of earth

  crust

  mantle

  outer core

  inner core
• what is the crust and one detail

  the thin outer layer made up of solid rock
• what is the mantle and one detail

  under the crust

  consists of molten and semi molten rock
• what is the outer core and one detail

  comes after the mantle consists of liquid nickel and iron
• what is the inner core and one detail


  the solid centre of the earth

  up to 6000 degrees celsius
• how do convection currents work

  the core heats the plate and it rises then when it gets to the top it cools and goes back down and the repeats in a circular motion
• what are the three types of plates

  sliding

  separating

  colliding
• what type of boundary is a separating one

  constructive boundary
• what type of boundary is a colliding one

  destructive boundary
• what type of boundary is a sliding one

  constructive boundary