Across
- 5. the earths topmost layer
- 6. when tectonic plates slide against each other
- 9. a patch of water in the middle of land
- 11. a cluster of small islands
- 13. Vegetation in the middle of the dessert
- 14. our planet
- 16. frozenriver of ice and snow
- 18. land high then 500m above sea level
- 20. ocean to the west of australia
- 21. a small patch of land in the middle of the ocean
Down
- 1. when a tectonic plate moves underneath another
- 2. inner most layer of the earth
- 3. where the tectonic plates sit
- 4. smallest tectonic plate
- 7. salt water seperating land
- 8. where the convection currents are located
- 10. when the tectonic plates move away from each other
- 12. mountain range where mount everrest is located
- 15. large wave
- 17. errupts lava
- 19. largest continent