Earth Science Articles

• Earth Science
  Sports Science
  Geology
  Near-Earth Object Impacts
  Environmental Issues
  Earthquakes
   
  

  Foucault pendulum

  A Foucault pendulum, or Foucault's pendulum, named after the French physicist Leon Foucault, was conceived as an experiment to demonstrate the rotation of the Earth; its action is a result of the ... > more
• Oceanography
  Floods
  Geography
  Landslides
  Global Warming
  Ecology
   
  

  Coast

  The coast is defined as the part of the land adjoining or near the ocean. A coastline is properly, a line on a map indicating the disposition of a coast but the word is often used to refer to the ... > more
• Geology
  Fossils
  Earth Science
  Origin of Life
  Early Climate
  Earthquakes
   
  

  Precambrian

  The Precambrian is an informal name for the eons of the geologic timescale that came before the current Phanerozoic eon. It spans from the formation of Earth around 4500 Ma (million years ago) to the ... > more
• Earth Science
  Geology
  Geomagnetic Storms
  Near-Earth Object Impacts
  Stars
  Asteroids, Comets and Meteors
   
  

  Precession of the equinoxes

  The precession of the equinoxes refers to the precession of Earth's axis of rotation with respect to inertial space. The precession of the equinoxes is caused by the differential gravitational forces ... > more
• Fossils
  Geography
  Geology
  Origin of Life
  Extinction
  Environmental Policy
   

  Paleozoic

  The Paleozoic Era is a major division of the geologic timescale, one of four geologic eras. The Paleozoic includes six geologic periods; from oldest to youngest -- the Cambrian, Ordovician, Silurian, ... > more
• Biodiversity
  Rainforests
  Ecology
  Ecology Research
  Geography
  Nature
   

  Biodiversity hotspot

  A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction. The term biodiversity hotspot specifically refers to 25 ... > more
• Water
  Soil Types
  Environmental Issues
  Drought Research
  Drought
  Ecosystems
   
  

  Evapotranspiration

  Evapotranspiration (ET) is the sum of evaporation and plant transpiration. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and ... > more
• Sun
  Geomagnetic Storms
  Solar Flare
  Renewable Energy
  Atmosphere
  Northern Lights
   
  

  Solar radiation

  Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other ... > more
• Geography
  Earthquakes
  Oceanography
  Geology
  Natural Disasters
  Tsunamis
   
  

  Oceanic trench

  The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They also are the deepest parts of the ocean floor. Trenches define one of the most important ... > more
• Extinction
  Dinosaurs
  Endangered Animals
  Endangered Plants
  Fossils
  Early Climate
   
  

  Extinction event

  An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > more

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