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Definition
| Cracks in the earth's crust along which rocks move. |
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| Melted rock inside the earth |
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| melted rock that has oozed outside of the earth's crust. |
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| predict where earchquakes might occur |
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Definition
| Why do scientists study changes in the earth's crust and causes of earthquakes? |
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Definition
| evidence of past glacier movements |
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Definition
The nonliving materials in rocks |
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Definition
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| Small particles of sand, shells, and other materials that are pressed together |
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Definition
| The breaking and wearing away of rocks |
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Definition
| Rocks formed from cooling magma |
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Definition
| A mouintain built by lava |
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Definition
| The large sections of the earth's crust that move over melted rock in the mantle |
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Definition
| New land that if formed when a river empties into a loke or ocean |
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Term
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Definition
| large sections of earth's crust that move over melted rock in the mantle |
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Term
| mouintain, plateau, plain |
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Definition
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Term
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Definition
| melted rock under the earth's surface |
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Term
| When rocks bend and break a place along a fault |
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Definition
| What causes an earthquake? |
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Definition
| rocks that form from magma |
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Definition
| The process by which rocks are worn down by wind and water |
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Definition
| Igneous rock that has been changed by heat and pressure |
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Definition
| Rocks made from layers of mud and clay pressed together |
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Definition
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Definition
| The readings on a seismograph measure the strentgh of |
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Term
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Definition
| deltas are made from these |
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Term
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Definition
| A crack in the earth's crust along which rocks move |
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Term
| plant new trees, plant grass, and plow around hills |
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Definition
| What are some ways that farmers can reduce erosion? |
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Term
| Color, how light reflects, and how hard it is |
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Definition
| Name three ways that minerals can be identified? |
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Term
| The continents move because the plates that make up the earth's crust slide over the melted rocks in the earth's mantle. This causes the continents to move, but they move very slowly. |
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Definition
| Explain how the continents move. |
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