The GED Science Test: Earth Science I

Master the science of GED prep! Our vocabulary lists will help reinforce your understanding of the major topics covered on the GED Science Test, including the scientific method, life science, physical science, earth science, and more. Learn these essential terms to improve your test score and your confidence.
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Full list of words from this list:

words only definitions & notes
  1. continent
    one of the large landmasses of the earth
  2. continental drift
    the gradual movement of very large land masses
  3. core
    the central part of the Earth
  4. crust
    the outer layer of the Earth
  5. dormant
    not erupting but not extinct
  6. earthquake
    vibration from underground movement along a fault plane
  7. epicenter
    a point on the Earth's surface directly above an earthquake
  8. epoch
    a unit of geological time that is divided into ages
  9. equator
    an imaginary line around the Earth forming a great circle
  10. era
    a major division of geological time
  11. erosion
    condition in which the earth's surface is worn away
  12. eruption
    the sudden occurrence of a violent discharge
  13. fault
    a crack in the earth's crust resulting from displacement
  14. fossil
    the remains of a plant or animal from a past geological age
  15. geology
    science of the history of the earth as recorded in rocks
  16. glacier
    a slowly moving mass of ice
  17. igneous
    produced under conditions involving intense heat
  18. lava
    rock that in its molten form issues from volcanos
  19. magma
    molten rock in the earth's crust
  20. mantle
    the layer of the earth between the crust and the core
  21. metamorphic
    having undergone transformation by pressure, heat, etc.
  22. paleontology
    the earth science that studies fossil organisms
  23. period
    a unit of geological time when a system of rocks formed
  24. plate tectonics
    the movement or study of the movement of Earth's crust
  25. prehistoric
    relating to times before written records of past events
  26. sedimentary
    formed by or containing the accumulation of deposited matter
  27. seismograph
    an instrument for measuring movements of the ground
  28. stratum
    one of several parallel layers of material
  29. tide
    the periodic rise and fall of the sea level
  30. volcano
    a fissure in the earth's crust through which gases erupt
Created on Thu Mar 11 09:16:34 EST 2021 (updated Fri Mar 12 09:50:09 EST 2021)

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