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36 Cards in this Set
- Front
- Back
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Supernova
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An explosion of a supergiant star.
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Nebula
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A cloud of dust, gas, and elements in space.
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Accretion
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The collision and growth of planetary bodies.
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Theia
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The name of the Mars-sized planet that is thought to have collided with Earth.
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Earth
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Goldilocks planet.
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Stromatolites
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Mounds made of blue-green algae (cyanobacteria).
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Banded iron formations
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Layers of iron-rich sediments formed when Earth's atmospher became rich in oxygen.
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Ceres
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Dwarf planet
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Igneous rock that produces diamonds.
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Kimberlite
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Branch of science that studies Earth's deep interior.
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Geophysics
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The bending of waves as they pass from one layer to another.
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Refraction
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Trucks used to create soundwaves in the Earth.
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Thumper truck
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Liquid.
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Outer core
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Solid and brittle.
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Lithosphere
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Fe, Mg, and Si.
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Mantle
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Thin and dense.
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Oceanic Crust
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Proposed the Theory of Continental Drift.
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Alfred Wegner
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The "fit" of South America and Africa.
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Puzzle-peice relationship
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Scratches made by glaciers.
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Glacial striations
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Formed in wet, tropical climates.
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Coal
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Structures on the seafloor matched the shapes of the continents.
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Seafloor mapping
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Reversal of Earth's magnetic field through geologic time.
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Geomagnetism
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Circulation of hot and cold material.
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Convection
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Where two plates slide past each other.
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Transform boundary
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Long, linear mountain chains rising from the seafloor and running around the Earth.
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Mid-ocean ridges
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Long fractures cutting perpendicular to ocean spreading centers.
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Fracture zones
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Piece of exposed oceanic crust.
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Ophiolite
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Solidified, colomn-like sheets that form in the oceanic boundaries between plates.
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Sheeted dikes
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The boundary between the crust and the mantle.
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Moho
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Rock the mantle is made out of.
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Peridotite
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Oceanic to continental convergence.
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Subduction zone
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Volcanic locations that are not associated with plate boundaries.
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Hotspots
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Formed after a volcanic island no longer lies over a mantle plume.
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Barrier reef
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A flat-topped underwater mountain
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Guyot
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A depression in the seafloor that circles each Hawaiian Island
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Moat
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An coral island that is ring-like in shape.
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Atoll
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