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Earth Science Voc
Stack #44480
| Earth Science Terms | Earth Science Definitions |
|---|---|
| landforms | physical features on the Earth's surface |
| weathering | the process of breaking down rock, sand, clay, and sediments |
| erosion | the process of moving sediment from one place to another |
| deposition | the process of dropping, or depositing, dediments in a new location |
| mass movement | the downhill movement of rock and soil because of gravity |
| crust | the outer layer of the Earth that is made of rock and is very thin |
| mantle | the layer beneath the crust |
| core | the center of the earth and is made of two parts; inner core and outer core |
| plate | rigid blocks of crust and upper mantle rock |
| magma | is mosten rock from the Earth's mantle |
| volcano | a mountain formed by lava and ash |
| earthquake | a shaking of the ground caused by the sudden release of energy in the Earth's crust |
| fault | places where pieces of crust move |
| continental drift | the theory of how Earth's continents move over its surface |
| Pangea | theory that 225 million years ago all of the land on Earth was joined together in a "supercontinent" |
| epicenter | the point of the Earth's surface directly above an earthquake |
| contour plowing | following the lines of uneven terrain to limit erosion of topsoil |
| windbreak | hedge, fence or row of trees serving to lessen or break the force of the wind |
| seismograph | instrument Scientists use to measure and record seismic waves |
| seismic waves | energy sent out during an earthquake |
| Richter Scale | an instrument with a scale ranging from 1 to 10, used to measure the total energy release by an earthquake |
| tsunami | a very large wave caused by an under water earthquake or volcanic eruption |
| lava | molten rock that reaches the Earth's surface |
| delta | a deposit of sediments at the mouth of a river |
| sand dunes | a hill or ridge of wind blown sand |
| flood control | the regulating of water entering a certain area of land |
| dam | a barrier built across a waterway to control the flow or raise the level of water |
| levees | an embankment built to prevent a river from over flowing or any water from entering a certain area of land |
| beach reclamation | a technological method of restoring the natural sand back to the beach |
| terrace | a raised bank of earth having sloping sides and a flat top |
| lime sinks | sudden sinking of soil that is on top of a lime stone |
| Plate tectonics | a theory that the sectioned plates move over the earth's crust causing volcanic eruptions, thus causing continental drift and changing the shape and size of the ocean as well as the continets |
Created by:
mbhill
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