Across
- 2. - the rigid outer part of the earth, consisting of the crust and upper mantle.
- 9. - an eruption of molten material from a fissure, vent, or active lava lakes.
- 11. -The breaking up and formation of supercontinents
- 12. - a region of the Earth's crust where tectonic plates meet. Tectonic plates are massive pieces of the Earth's crust that interact with each other.
- 14. - a region of active deformation where two or more tectonic plates or fragments of the lithosphere near the end of their life cycle.
- 15. - a linear feature that exists between two tectonic plates that are moving away from each other.
- 18. - a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.
- 21. - hot molten or semi-fluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
- 23. - the second to last layer of the Earth. It is a magma like liquid layer that surrounds the Inner Core and creates Earth's magnetic field.
- 24. - the outermost layer of a planet.
- 25. - a layer between the crust and the outer core.
Down
- 1. - a small area with a relatively high temperature in comparison to its surroundings.
- 3. - a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
- 4. - a sudden violent shaking of the ground, typically causing great destruction, as a result of movements within the earth's crust or volcanic action.
- 5. - places where plates slide sideways past each other.
- 6. - an elastic wave in the earth produced by an earthquake or other means.
- 7. - hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
- 8. - a depression of the earth's surface in which an ocean lies.
- 10. - the formation of fresh areas of oceanic crust which occurs through the upwelling of magma at mid-ocean ridges and its subsequent outward movement on either side.
- 13. - the gradual movement of the continents across the earth's surface through geological time.
- 16. - a tectonic plate which includes most of the continent of Eurasia
- 17. - a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere
- 19. - the Earth's innermost part.
- 20. -a crack in the Earth's crust.
- 22. - a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth's crust.