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Plate Boundaries
| Question | Answer |
|---|---|
| Magma that reaches the Earth’s surface | Lava |
| Molten rock found below the Earth’s surface | Magma |
| The continuous flow of hot, solid material in the mantle due to density differences. Provides the basic driving forces for plate motion | Mantle Convection |
| The theory that proposes that Earth’s lithosphere consists of individual plates that interact in various ways and thereby produce earthquakes, volcanoes, mountains, and the crust itself. | Plate tectonics Theory |
| The process where plate tectonics produces new oceanic lithosphere at ocean ridges. | Sea-floor Spreading |
| The location where oceanic crust sinks beneath a trench and back into the mantle at a colliding plate boundary. | Subduction zones |
| Huge pieces of broken lithosphere. | Tectonic Plates |
| A boundary where two plates slide past each other without creating or destroying lithosphere. No volcanic activity occurs. | Transform Fault boundary |
| A place where two lithospheric plates are moving apart. | Divergent plate boundary |
| A place where two lithospheric plates are moving together. | Convergent plate boundary |
| A mountain formed from lava or pyroclastic material. | Volcano |
| The decay of radioactive material in the Earth’s interior and the main heat source for mantle convection. | Radioactive decay |
| A continuous mountain chain on the floor of all the major ocean basins. | Mid-ocean Ridge |
Created by:
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