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Earths Structures
Chaper 2 Vocabulary
| Term | Definition |
|---|---|
| Core | Earths innermost structure |
| seismic waves | waves of energy sent through Earths crust when parts of the crust move suddenly |
| magma | melted rock below Earths surface; called lava the surface |
| fault- block mountains | mountains that form along fault lines where blocks of rocks fall, are thrust up, or slide |
| dome mountains | mountains that form when magma pushes up on Earths crust but does not break through |
| focus | point underground where the faulting in an earthquake occurs |
| plate tectonics | theory that giant plates of crust are moving slowly across Earths surface |
| lithosphere | shell formed from Earths solid upper mantle and crust |
| epicenter | point on Earths surface directly above the focus of an earthquake |
| fold mountains | mountains that form where two plates collide and force layers |
| crust | the thin rocky outer layer of Earth that makes up the continents and the ocean floor |
| mantle | the thick layer of Earth's structure just below Earth's crust |
| earthquake | violent shaking of Earth's crust as built-up energy is released |
| fault | crack in Earth's surface along which movement takes place |
Created by:
ramonaedwards
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