Across
- 4. – cold
- 5. – metal
- 7. – solid
- 8. – outer core
- 10. – thin
- 12. – liquid
- 14. – surface
- 16. – mantle
- 17. – crust
- 18. – lava
- 20. – rocky
Down
- 1. – depth
- 2. – metallic
- 3. – rock
- 6. – thick
- 9. – inner core
- 11. – hot
- 13. – magma
- 15. – tectonic plate
- 19. – soil
