Geology Investigation 5 Layers of the Earth vocab.
A scientist who studies the Earth.
|Crust||Earth's outermost layer.|
Large land masses.
|Mantle||Earth's thickest layer, between the crust and the core.|
|Core||Earth's center, made mostly of metals, iron, and nickel.|
|Outer Core|| |
A layer of liquid, molten iron and nickel that surrounds the inner core of Earth. It flows slowly.
|Inner Core|| |
A dense sphere of solid iron and nickel at the center of Earth.
|Conduction||The transfer of heat energy through solid matter as one particle strikes another.|
|Convection||The transfer of heat energy by flowing material such as liquid or gas.|
|Subduction||One plate sliding under another plate.|
|Continental Drift|| |
Idea that continents move apart from one part of the Earth to another.
|Plate Tectonics|| |
The theory of how and why the Earth's plates move.
|Pangaea||One large super continent named by Alfred Wegener.|
|Divergent Boundary||A place where two Lithospheric Plates are moving apart. (Oceans form this way).|
|Convergent Boundary||A place where two Lithospheric Plates collide or come together. (Mountains form this way).|
|Transform Boundary||Lithospheric Plates slide past each other. When this happens, plates are not created or destroyed.|
|Sea Floor Spreading||Oceanic crust being created at the Mid Ocean Ridge. States that youngest rocks of ocean floor are at diverging boundaries, moving outward.|
|Lithosphere||The outer shell of the Earth, made of the crust and the very top of the mantle, which extends to a depth of 100 kilometers.|
|Asthenosphere||The partially melted layer of the mantle which feels like putty, and underlies the lithosphere.|
|Lithospheric Plates||A number of rigid, but moving pieces of the Earth's surface.|
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- "Continent" image
- "Outer Core" image
- "Inner Core" image
- "Continental Drift" image
- "Plate Tectonics" image
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