Across
- 3. refers to volcanoes that form inside the earth's crust
- 5. molten rock that has escaped from the earth's interior
- 8. describes liquid that flows less easily
- 10. an intrusive sheet of magma that cuts across older rocks
- 11. a huge crater-like depression in the upper portion of a volcano
- 12. molten rock in the earth's interior
- 14. a layer of loose pyroclastic materials covering the ground
- 15. anything having to do with molten materials
Down
- 1. refers to volcanoes that form on top of the earth's crust
- 2. vents in the ground where steam and other gases escape
- 4. thick layers of igneous rocks covering many places in the world
- 6. a depositional mountain form built from solidified magma
- 7. an opening in the earth's crust from which lava, ash, and gases can escape
- 9. an intrusion of magma between layers of rock in the direction of foliation
- 13. a depression at the top of a volcanic cone