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Volcano science 6

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Volcano science 6

  1. 1. Lesson 4 volcanoes & different volcanic activities
  2. 2. Turn your book on page 335!!!!!!
  3. 3. Volcano • Is an opening in the earth’s crust where lava, pyroclasts, and gases are ejected onto the surface during eruptions.
  4. 4. • Calderas – that exceed about 1 km in diameter • formed when the summit of volcano collapses during eruptions.
  5. 5. Kinds of volcano •Shield volcano •Cinder cone volcano •Composite volcano or stratovolcano
  6. 6. Shield volcano
  7. 7. The largest shield volcano
  8. 8. Cinder cone volcano • Is built almost entirely of loose fragments called CINDERS
  9. 9. Composite volcano
  10. 10. According to activity • Active • Dormant • Extinct
  11. 11. Volcanic eruptions • Explosive or violent eruption • Quiet or non – explosive eruption
  12. 12. Thank you!!!

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