Across
- 7. Magma with high silica content, typically light-colored
- 8. A plate boundary where plates slide horizontally past each other
- 10. A steep, layered volcano formed at subduction zones
- 12. The process of magma breaking through the Earth's surface
- 15. A geological zone where two tectonic plates move toward each other and collide
- 16. Rock formed when molten rock cools rapidly on the Earth's surface
- 18. Hot liquid rock beneath the Earth's surface
- 19. Gases dissolved in magma, including water and carbon dioxide
- 20. Rock formed when magma cools slowly beneath the Earth's surface
- 21. A broad, gently sloping volcano formed by non-explosive basaltic lava flows
- 23. The opening in the Earth's surface through which volcanic material emerges
Down
- 1. Fine particles of pulverized rock expelled during an eruption
- 2. A tectonic plate boundary where two plates move away from each other
- 3. An area where one tectonic plate slides beneath another
- 4. A fast-moving current of hot gas and volcanic debris
- 5. Underground reservoir where molten rock accumulates
- 6. A large section of the Earth's lithosphere that moves
- 9. Magma with low silica content, typically dark and dense
- 11. The process of mineral arrangement as magma cools
- 13. Magma with moderate silica content between basaltic and felsic
- 14. Rock formed from cooled and solidified magma
- 17. A lightweight, porous volcanic rock formed when super-heated, gas-filled lava cools rapidly
- 22. Hot liquid rock that has reached the Earth's surface