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Volcanoes

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  1. Volcanoes © Brent Coley 2008 | www.mrcoley.com Key Vocabulary Houghton Mifflin Reading Theme 1 – Nature’s Fury

  2. See if you can correctly define the following vocabulary words.

  3. If necessary, use the context clues from the sample sentences to help you.

  4. cinders

  5. Sample Sentence: Tom cleaned the cinders out of the fireplace. cinders

  6. Definition: n. Partly burned pieces of coal or wood cinders

  7. crater

  8. Sample Sentence: The hikers climbed to the crater of the inactive volcano. crater

  9. Definition: n. A hollow bowl-shaped area at the mouth of a volcano crater

  10. crust

  11. Sample Sentence: Earthquakes can cause cracks in the earth’s crust. crust

  12. Definition: n. The hard outer layer of the earth crust

  13. eruption

  14. Sample Sentence: The eruption of Mt. St. Helens in 1980 was very destructive. eruption

  15. Definition: n. A volcanic explosion or large flow of lava eruption

  16. lava

  17. Sample Sentence: Lava poured out of the volcano, burning everything in its path. lava

  18. Definition: n. Hot melted rock that flows from a volcano lava

  19. magma

  20. Sample Sentence: The magma bubbled underground. magma

  21. Definition: n. Molten rock underneath the earth’s surface magma

  22. molten

  23. Sample Sentence: The molten lava flowed out of the volcano. molten

  24. Definition: adj. Made liquid by heat molten

  25. summit

  26. Sample Sentence: The hikers celebrated when they reached the summit. summit

  27. Definition: n. The top of a mountain summit