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| Question | Answer |
| Plates | The large pieces of broken crust that covers the Earth. |
| Plate Margins | Where two tectonic plates meet. |
| Types Of Plate Margins | Constructive, Conservative and Destructive |
| Constructive Plate | A plate margin where the tectonic plates are moving apart. |
| Conservative Plate | A plate where the tectonic plates are sliding past each other. |
| Destructive Plate | A plate margin where the tectonic plates collide. |
| Collision Zones | They are a type of destructive margin. |
| Oceanic Crust | The Part of the Earth's Crust which is under the oceans. |
| Continental Crust | The Part of Earth's crust that makes the continents. |
| Subduction | The transformation into magma of a denser tectonic plates as it dives under a less dense plate. |
| Fold Mountains | A mountain range formed by collision of a continental plate with either another continental plate or oceanic plate. |
| Ocean Trenches | A deep depression on ocean floor formed at the subduction zones of destructive plate margin. |
| How are Composite Volcanoes Formed | They're found at destructive plate margins. When the oceanic plate sinks into mantle and melts, if forms magma. Magma mixed with sea water then rises up through cracks in the Earth's crust and erupts at the surface-forming volcanoes. |
| How are Shield Volcanoes Formed | They're found at constructive plate margins. As the two plates move apart, magma rises up from the mantle. Some magma is forced to surface through a vent - forming a volcano. |
| Which is more dangerous? Composite or Shield Volcanoes | Composite is more dangerous since the eruption are more violent expelling steam, ash, lava and rock but the eruption doesn't occur very often. |
| Pyroclastic Flows | Fast-moving, destructive torrents of hot ash, rocks, gasses and steam from a volcano. |
| Super Volcano | A volcano capable of erupting on much larger scale than a normal volcano. |
| Caldera | A large ridge forming the edge of a super volcano, where the original cone has either collapsed or been destroyed in a large eruption. |
| Volcanic Explosivity Index (VEI) | It measures the volume of material erupted. |
| Shock Waves | The energy waves created by an earthquake. |
| Focus | The point of origin of an earthquake. |
| Epicentre | The point on the ground directly above the focus (centre) of an earthquake |
| Richter Scale | A measure of how strong an earthquake is. |
| Mercalli Scale | it is measure in roman numerals; furthermore, it measures the power and effects of earthquakes. |
| Tsunami | Huge waves caused by an earthquake under the sea. |
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