UNIT 2. THE EARTH´S RELIEF
Unit objectives
-to learn about the structure of the Earth-to read about its continents and oceans
-to compare and contrast different landforms-to learn about how the Earth´s relief is formed
-to know about the differences between the relief of the continents
-to learn about the main features of the european relief
1.1.The structure of the Earth
1. THE STRUCTURE IN LAYERS OF THE EARTH. LITHOSPHERE AND CRUST
Internal External
LithosphereHydrosphereAtmosphere
LithosphereHydrosphereAtmosphere
CoreMantleCrust
CoreMantleCrust
Internal Structure
External. The lithosphere
1.2.The lithosphere and tectonic platesThe jigsaw of tectonic platesThe jigsaw of tectonic plates
San Andrew´s fault
HOMEWORKS
What is the continental drift theory? Who formulated this theory?
Why the continental plates are moving?
What are the seismic areas? And the volcanoes?
1.3.The crust
Emergent lands
Submerged lands
The crust
CONTINENTS and OCEANS
HOMEWORKS
1.Make a drawing of the internal and external layers of the Earth (with definitions)
2.Copy and complete:
When two plates in the lithosphere collide the crust is...........
When the two plates...............new crust is generated.
3. Which continents are in the Nothern Hemisphere?
4.Wich continents are in the Southern Hemisphere?
1,2,3 pag. 41.
2.THE CONTINENTS OF THE EARTH
ACTVS. PAG. 42.
1.Complete this table:
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Continent Situation Limits Area
3.THE RELIEF. FORMATION AND TRANSFORMATION3.1.The definition of relief
The relief origins
External forcesInternal forces
3.2.The origin of the relief and its agents.
The relief is a consequence of the following internal
forces
Volcanoes
Earthquakes
Orogeny
Orogeny
Earthquakes
Volcanoes
EarthquakesEarthquakes
It´s the process through which reliefs are formed. It
happens where tectonic plates move
They are cracks in the crust that expel magma, ashes,
rocks and toxic gases
They are caused by violent movements of the terrestrial
crust
San Francisco 1906
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Volcanoes
Search for information about Pompeii and Herculaneum
3.2.The transformation of the relief and its agents
Three actions
Sedimentation of the materials
Transportation of eroded materials
Erosion of the terrain
Three agents
Water
Living things
atmosphere
Rainfall
Rivers and streams
Coastal erosionCoastal erosion
South Wales
Alberta (Canada)
glaciers
Freezing and thawing
scree
Wind erosion
Árbol de piedra, Bolivia
The Wave, a sandstone formation in northern Arizona
Gravitational erosion
Wadi in Makhtesh Ramon, Israel,
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DEFORESTATION
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4.1.Landforms of the continental relief
CONTINENTAL
-MOUNTAINS AND HILLS-MOUNTAINS RANGE- CATCHMENT AREA OR DEPRESSIONS.-PLATEAUS-PLAINS
4.LANDFORMS
4.2.Landforms of coastal relief
COASTAL RELIEF
-CAPES-GULFS-PENINSULAS-RÍAS-FIORDS-DELTAS-ESTUARIES-BEACHES AND CLIFFS
Nilo Delta
Norwegian fiords
Cape of Gata
gulf
27/09/11CLIFFS OF MOHER
4.3.Oceanic landforms.
SUBMARINE RELIEF
-CONTINENTAL PLATFORMS-CONTINENTAL SHELVES-ABYSSAL PLAINS-MID-OCEAN RIDGES-MARINE TRENCHES-GUYOT
A fault in Iceland
Homeworks. Write the definition of every landforms (continental, submarine and coastal)Homeworks. Write the definition of every landforms (continental, submarine and coastal)
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5. THE LAND RELIEF OF THE CONTINENTS
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6..The land relief of Europe
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