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How does this animation explain
The Theory of Continental Drift?
ReviewReview
Continental drift
1. Continent shape
2. Fossil evidence
3. Rock evidence
4. Mountain evidence
5. Glacial sca...
Plate TectonicsPlate Tectonics
Two parts of the theory:
Part One:
Lithosphere - the solid
layer of the Earth,
Is broke...
Plate TectonicsPlate Tectonics
Crustal plates - large pieces
of crust
7 main plates and several
smaller ones
Continents...
Plate TectonicsPlate Tectonics
Part Two:
Crustal plates “float” on the
upper part of the mantle
Like rafts on a lake
Source of MovementSource of Movement
Convection current –
the movement of a fluid
caused by temperature
difference
Source of MovementSource of Movement
Gravity
Plate TectonicsPlate Tectonics
Explains how the continents
move
Also explains natural events like:
Earthquakes
Mountai...
Plate Tectonics
Plate Tectonics
Plate Tectonics
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Plate Tectonics

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Transcript of "Plate Tectonics"

  1. 1. How does this animation explain The Theory of Continental Drift?
  2. 2. ReviewReview Continental drift 1. Continent shape 2. Fossil evidence 3. Rock evidence 4. Mountain evidence 5. Glacial scars
  3. 3. Plate TectonicsPlate Tectonics Two parts of the theory: Part One: Lithosphere - the solid layer of the Earth, Is broken up into crustal plates
  4. 4. Plate TectonicsPlate Tectonics Crustal plates - large pieces of crust 7 main plates and several smaller ones Continents and ocean floors rest on the plates
  5. 5. Plate TectonicsPlate Tectonics Part Two: Crustal plates “float” on the upper part of the mantle Like rafts on a lake
  6. 6. Source of MovementSource of Movement Convection current – the movement of a fluid caused by temperature difference
  7. 7. Source of MovementSource of Movement Gravity
  8. 8. Plate TectonicsPlate Tectonics Explains how the continents move Also explains natural events like: Earthquakes Mountain formation Volcanoes
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