Across
- 3. A type of tectonic plate where 2 plates move away from each over as. Causes seafloor spreading in oceanic plates.
- 5. An old and stable part of the continental lithosphere, which consists of Earth's two topmost layers, the crust and the uppermost mantle
- 6. The study of earthquakes and the propagation of elastic waves through the Earth or other planetary bodies
- 7. A collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate.
- 8. solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon
- 9. A type of tectonic plate where 2 plates move into each other. A cause of mountains.
Down
- 1. The scientific theory that Earth's lithosphere is comprised a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago
- 2. A type of tectonic plate where 2 plates move past each other in opposite directions.
- 4. The study of the forms and features of land surfaces.
- 6. A wave of acoustic energy that travels through the Earth or another planetary body. It can result from an earthquake, volcanic eruption, magma movement, a large landslide, and a large man-made explosion