changes within the earths surface changes within the earths surface
TRANSCRIPT
CHANGES WITHIN THE EARTHS
SURFACE
CHANGES WITHIN THE EARTHS
SURFACE
The Earth’s LayersThe Earth’s Layers 1. Core - center
Inner - solid/ outer-liquid
2. Mantle thick layer of rock 3. Crust
rocky surface area
1. Core - center Inner - solid/ outer-
liquid 2. Mantle thick layer of rock 3. Crust
rocky surface area
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Land, Air and WaterLand, Air and Water Lithosphere --surface material (soil, rock, and other landforms)
Atmosphere -- substances above the surface (air and water)
Biosphere -- plants, animals, and other living things
Continents -- 7 separate Relief -- difference in elevation
Lithosphere --surface material (soil, rock, and other landforms)
Atmosphere -- substances above the surface (air and water)
Biosphere -- plants, animals, and other living things
Continents -- 7 separate Relief -- difference in elevation
Plate TectonicsPlate Tectonics
Movement and shifting of the plates
THERE ARE 4 TYPES OF PLATE MOVEMENT
Movement and shifting of the plates
THERE ARE 4 TYPES OF PLATE MOVEMENT
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4 Types of Movement4 Types of Movement
Subduction -- heavier plate slides down toward the mantle
Sea - Floor Spreading -- Magma comes from underneath and moves it away
Converging -- collide and create Mt.
Faulting -- plates slip or grind past each other
Subduction -- heavier plate slides down toward the mantle
Sea - Floor Spreading -- Magma comes from underneath and moves it away
Converging -- collide and create Mt.
Faulting -- plates slip or grind past each other
Changes on the Surface -
sect. 3
Changes on the Surface -
sect. 3 Weathering - break down at or near the Earth’s surface
1. Mechanical -- rock is actually broken or weakened physically
Example--frost wedging 2. Chemical -- Alters rocks chemical make
up a. Carbonic Acid -- dissolves rock b. Acid rain -- chemicals combine
with water
Weathering - break down at or near the Earth’s surface
1. Mechanical -- rock is actually broken or weakened physically
Example--frost wedging 2. Chemical -- Alters rocks chemical make
up a. Carbonic Acid -- dissolves rock b. Acid rain -- chemicals combine
with water
EROSIONEROSION
Movement of weathered materials including gravel, soil, and sand
Agents -- water, wind and glaciers
Movement of weathered materials including gravel, soil, and sand
Agents -- water, wind and glaciers
WaterWater
Carries sediment away and this will grind away at the rock
Flood plain -- forms on the sides of rivers
Delta -- flat, low-lying plain formed at the mouth of the river, where the river enters the lake
Carries sediment away and this will grind away at the rock
Flood plain -- forms on the sides of rivers
Delta -- flat, low-lying plain formed at the mouth of the river, where the river enters the lake
GlaciersGlaciers
Huge slow moving sheets of ice
4 ice ages Moraines -- piles of rock and debris left by glaciers
Huge slow moving sheets of ice
4 ice ages Moraines -- piles of rock and debris left by glaciers