Across
- 4. outermost layer
- 6. earthquakes create these
- 7. a slab of solid rock
- 9. solid ball of nickel and iron
- 10. liquidy, not firm
Down
- 1. found in a molten state
- 2. heat causing rocks to rise and fall
- 3. formed from rapid cooling
- 5. densest layer
- 8. firm state, not liquidy