Volcanoes

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Across
  1. 2. A volcano that is not expected to erupt again
  2. 3. An inactive volcano that could erupt in the future
  3. 4. The Earth's solid rock outer layer
  4. 7. Melted rock located beneath the Earth’s surface
  5. 9. The extremely hot layer under the Earth's crust
Down
  1. 1. A scientist who specializes in studying volcanoes
  2. 4. The bowl-shaped opening at a volcano's top
  3. 5. Melted rock that has reached the surface
  4. 6. The channel magma travels through to the surface
  5. 8. Tiny pieces of rock and glass from eruptions