Across
- 1. An underground area where thick, molten rock collects
- 4. Name for melted rock under Earth's surface
- 6. A bowl-shaped depression around the mouth of a volcano
- 8. Land feature that forms when magma flows onto Earth's surface
- 9. Molten rock flowing down the sides of a volcano
- 12. A channel in the neck (main pipe) of a volcano, where magma erupts
- 13. Fixed spot where magma rises through the crust and creates volcanoes
- 14. Lumps of lava thrown out of a volcano while still molten
- 15. Rift valleys form at these plate boundaries
Down
- 2. Area that surrounds the Pacific Ocean that has a lot of volcanoes
- 3. Location where most volcanoes occur
- 5. A line of volcanoes along a subduction zone is called this
- 7. Subduction occurs at these plate boundaries
- 10. Fine material thrown out by a volcano
- 11. Column of hot rock in the mantle below a hot spot