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study (flashcards)
| Question | Answer |
|---|---|
| Crust | a thin layer around earth |
| Mantle | a later of rock between the earth;s crust and ccore |
| outer Core | Liquid, metal layer surrounding Earth's inner core. |
| Inner Core | The solid, metal center of Earth with high pressure and temperature |
| lithosphere | Earth's rigid outer layer, made up of the crust and solid, upper mantle that is broken into plates that move on top of the asthenosphere. |
| Mid - ocean ridge | |
| tectonic plates | Pieces of Earth’s crust that move around as they float on top of the mantle. |
| conviction curents | Heat-driven movements where hotter, less dense material rises and cooler, more dense material sinks. |
| atmosphere | The layer of gas that surrounds Earth. |
| asthensphere | Soft, slow-moving layer beneath Earth's crust. |
| earthquake | The shaking of the Earth's surface caused by plates colliding, moving apart or sliding past each other. |
| volcano | A mountain that erupts with lava and ash when plates collide or move apart. |
| mesosphere | |
| core | the central part of earth below the mantle |
| seismic waves | a wave of energy that travels through earth and away from an earthquake in all directions |
| Geosphere | The rock portion of Earth, made up of four different layers. |
| Hydrosphere | All the water found on Earth. |
| Magma | Melted rock beneath Earth's surface. |
| contiental drift | the hopothesis that a single large landmass broke up into smaller landmasses to form the continents, witch then drifted to their present locastion: the movement of ccontinenets |
| magnetic reversal` | `new sea-floor rock is continually formed at mid ocean ridges as this new rock forms,magnetic minerals such as magnetite, in the rock align with earth's pole |
| plate tectoniccs | states that earths surface is made up of giant, moving slabs called tectonic plates. |
| thoery | is a system of ideas that exsaplin many related observations about thee natural world. |
| convergent boundary | the boundary between tectonic plates that are colliding |
| divergent boundry | the boundary between two tectonic plates that are moving away from each other |
| transform boundry | the boundary between tectonic plates that are sliding past eachother horizontally |
| focus | the location within earth along a fault at witch the first motion of an earthquake occurs |
| earthquakes | |
| epicenter | |
| tectonic plates boundry | |
| fault | |
| deformation | |
| elastic rebound | |
| S-waves | |
| P-waves |