Volcanoes

Lynette P.
30 words 113 learners

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  1. Mount St. Helens
    an active volcano in the Cascade Range in southwestern Washington; erupted violently in 1980 after 123 years of inactivity
    Not far from Mount Rainier and another volcano, Mount Adams, is Mount St. Helens.
  2. erupt
    start suddenly
    A volcano is a hill or mountain formed by erupted material that piles up around the vent.
  3. magma
    molten rock in the earth's crust
    The melted, or molten, rock is called magma.
  4. lava
    rock that in its molten form issues from volcanos
    When magma pours forth on the surface, it is called lava.
  5. eggshell
    the exterior covering of a bird's egg
    Earth’s crust is broken into huge sections like a giant cracked eggshell.
  6. Vulcan
    god of fire and metal working
    The early Romans believed in Vulcan, their god of fire.
  7. undersea
    beneath the surface of the sea
    An undersea volcano was exploding and a new island was being formed.
  8. spout
    gush forth in a sudden stream or jet
    In early times, no one knew how volcanoes formed or why they spouted red-hot molten rock.
  9. crater
    a bowl-shaped geological formation at the top of a volcano
    In its place is a huge volcanic crater.
  10. molten
    reduced to liquid form by heating
    In early times, no one knew how volcanoes formed or why they spouted red-hot molten rock.
  11. churn
    a vessel to separate butterfat from buttermilk
    In 1963, an area of the sea near Iceland began to boil and churn.
  12. dedicate
    give entirely to a specific person, activity, or cause
    In 1982, the mountain and the area around it were dedicated as the Mount St. Helens National Volcanic Monument.
  13. Pacific
    relating to or bordering the Pacific Ocean
    Many volcanoes and earthquakes are located along the margins of the large Pacific plate.
  14. explode
    burst and release energy as through a violent reaction
    An undersea volcano was exploding and a new island was being formed.
  15. dynamite
    an explosive that contains nitroglycerin
    The energy released in the eruption was equal to ten million tons of dynamite.
  16. burst forth
    be unleashed; emerge with violence or noise
    Even though the islanders tried to please Pele, she burst forth every few years.
  17. segment
    one of several parts that fit with others to make a whole
    The top of the volcano and a large segment of its north face slid away.
  18. locate
    determine the place of by searching or examining
    Many volcanoes and earthquakes are located along the margins of the large Pacific plate.
  19. goddess
    a female deity
    The early Hawaiians told legends of the wanderings of Pele, their goddess of fire.
  20. forge
    create by hammering
    They thought that Vulcan worked at a hot forge, striking sparks as he made swords and armor for the other gods.
  21. mantle
    a sleeveless garment like a cloak but shorter
    Deep beneath the crust is the mantle, where it is so hot that some rock melts.
  22. awaken
    cause to become conscious
    In March 1980, Mount St. Helens awakened from its long sleep.
  23. highway
    a major road for any form of motor transport
    Miles of highways, roads, and railways were badly damaged.
  24. monument
    a structure erected to commemorate persons or events
    In 1982, the mountain and the area around it were dedicated as the Mount St. Helens National Volcanic Monument.
  25. wandering
    travelling about without any clear destination
    The early Hawaiians told legends of the wanderings of Pele, their goddess of fire.
  26. constantly
    without variation or change, in every case
    Pele moved constantly from one Hawaiian island to another.
  27. advance
    move forward
    After two month, hundreds of buildings had burned down and dozens more had been buried in the advancing lava.
  28. settled
    established in a desired position or place; not moving about
    Finally, Pele settled in a mountain call Kilauea, on the Big Island of Hawaii.
  29. appear
    come into sight or view
    Thousands of eruptions were needed to build mountains high enough to reach from the dep sea bottom and appear as islands.
  30. fell
    cause to go down by or as if by delivering a blow
    Measurable ash fell over a huge area of more than 75,000 square miles.
Created on Fri Apr 05 11:18:46 EDT 2013

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