Across
- 3. A broad domed volcano with gently sloping sides
- 7. The point on the earth's surface vertically above the focus of an earthquake
- 8. These form due to the pulling apart of the lithosphere
- 9. The outer part of Earth consisting of crust and upper mantle
- 10. Plate tectonics collide
- 11. A chart to measure strength of earthquakes
- 15. The study of ancient magnetism preserved in rocks
- 16. The displacement of a big mass of mineral
- 18. A body of intrusive igneous rock that is crystallized from magma inside Earth
- 19. A conical volcano built up by many layers of hardened lava
- 20. The theory that all of Earth's continents were once combined
- 21. Mountain type that forms inside Earth
Down
- 1. The state of being thick, sticky, and semifluid in consistency
- 2. Plate tectonics separate
- 4. A line on a diagram or map connecting two relating times
- 5. A low to the ground steep type of volcano
- 6. Between mantle and lithosphere
- 12. A large volcanic crater formed by a major eruption
- 13. A region with a hot area with a not relating temperature in the nearby area
- 14. The mostly-solid bulk of Earth's interior
- 17. A mass of igneous rock intruding between rock strata causing uplift in a dome shape