Across
- 2. Molten rock once it reaches the surface
- 6. Component of quartz and sand
- 7. Earth's hard outer layer
- 8. Mountain formed through explosive and effusive eruptions
- 10. Tectonic boundary where plates move towards each other
Down
- 1. Layer between Earth's crust and core
- 3. Tectonic boundary where plates move apart
- 4. Resistance to flow
- 5. Molten rock beneath Earth's surface
- 9. Broad, gently sloping volcano formed by fluid lava flows