Chapter 4 Vocabulary Word Scramble
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Term | Definition |
Core | Earth's center |
Mantle | The zone that has most of Earth's mass. |
magma | Liquid rock within Earth. |
Plate Tectonics | The theory that Earth's crust is divided into plates that slowly move across the upper mantle. |
Rift Valleys | Places on Earth's surface where the crust stretches until it breaks. |
Abyssal Plains | Areas of the ocean floor where rocks gradually sink because they have no supporting heat below them. |
Continental Shelves | Areas where continetal surfaces extend under the swallow ocean water around the continents. |
Trench | A deep valley making a collinson of plates,where one plate slides under another. |
Folds | Places where rocks have been compossed into bends by colliding plates. |
Faults | Places where rock masses have been broken apart and are moving away from each other. |
Weathering | The process by which rocks break and decay over time. |
Sediment | Small particles of whathered rock. |
Erosion | Movement of surface material from one location to another by water,wind, and rice. |
Glaciers | Thick masses of ice,including great ice sheets and bodies of ice that flow down mountains like slow rivers. |
Plateu | An elevated flatland that rises sharply above nearby land on at least one side. |
Alluvial Fan | Fan-shaped deposit of mud and gravel often found along the bases of mountains. |
Delta | Accumulation of sediment at the mouth of a river. |
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