Tectonics
Across
- 5. centre of the Earth.
- 7. / ……………….. plate margins move alongside each other either in the same or opposite directions.
- 8. pushed apart.
- 10. type of volcano formed at divergent plate margins.
- 11. name of a scale used to measure earthquakes.
- 12. go to the bottom of a liquid.
- 13. of the Earth's surface caused by motion of tectonic plates; diverging, converging or moving alongside
- 14. /Mountains which erupt occurring when plates converge or diverge.
- 15. together.
- 16. the heavier oceanic crust is pushed below the lighter continental crust.
- 18. plates are……………………..than continental plates.
- 21. rock that oceanic plates are made of, which is heavier than granite.
- 22. below the epicenter of an earthquake
- 23. continental plate is largely ………………………………. the sea.
- 24. a volcano is not extinct but not erupting.
- 25. layer around the core of molten magma.
- 26. strength of an earthquake.
- 27. two transform plate boundaries meet.
- 28. ocean waves caused by under-sea earthquakes or volcanic eruptions.
Down
- 1. oceanic plate is for the most part ………………………the sea.
- 2. surface of the Earth.
- 3. word for margins.
- 4. rock that continental plates are made of.
- 6. grey powder created when something is burnt which spews out of volcanoes when they erupt.
- 9. margins(2 words)/Where two tectonic plates meet.
- 12. waves (2 words) /Waves in the surface of the Earth caused by plate movement.
- 13. plate(2 words)/What the crust is made of.
- 15. moves through the mantle due to ……………………… currents.
- 17. rock which flows from erupting volcanoes.
- 19. the top of a volcano explodes off.
- 20. /A type of volcano occurring on convergent plate boundaries where there is subduction.
- 22. Mountains caused by converging plates margins where the continental crust is crushed and folded.
- 25. rock, rock that is so hot that it has melted.