Across
- 6. destruction by wind,water and other natural agents
- 7. lies between earth dense ,super-heated core and its thin outer layer
- 9. core,a hot dense ball of mostly iron in the center of the earth
- 10. an opening in a planet or moon's crust through which molten rock,hot gases and other materials
- 13. molten, rock ejected by valconas in a form of liquad
- 16. a sudden and violent shacking of the ground
- 17. being worm by long exposure to the atmosphere
- 18. the outermost shell of a planet
- 20. features on the earth surface that make-up the terrain
Down
- 1. flow,a dense fast moving flow of solidified lava pieces volcanis ash and hot gases
- 2. core, surround the inner core of the earth mostly composed of liquid iron and nickel
- 3. million years ago Antarctica was joined to South America Africa,Indiana and Australia
- 4. a molten rock that is in the earth
- 5. tectonics,large slaps of rock that divide earth crust
- 8. very large land and masses
- 11. ancient continental mass in the northern hemisphere that included north America Europe and Asia
- 12. boundaries,the edges where two plates meet
- 14. drift, the gradual movement of the contentel across the earth surface through geological time
- 15. a hot and cold mixture of water and rock fragments that flow quickly down the slopes of a valcona
- 19. continents existed as one super continents