Tectonics topic 1.1 | Plate tectonic theory

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Across
  1. 1. The _________ of plates result in the formation of landforms (such as volcanoes) and phenomena (e.g. earthquakes and tsunamis).
  2. 3. Oceanic plates are _______ than continental plates. When they collide, the oceanic plate subducts beneath the continental plate.
  3. 6. _________ currents and slab-pull force are the two types of forces responsible for plate movement.
  4. 7. The Earth's lithosphere which consists of the crust and uppermost mantle is broken up into huge pieces called ________ plates that move.
Down
  1. 2. The plate tectonic theory explains that Earth has a _____-layered structure: crust, mantle and core.
  2. 4. The innermost layer of the Earth that is the thickest and hottest.
  3. 5. The movement of plates give rise to three different plate boundaries: convergent, divergent and ___________.