Term
| What cause an earthquake? |
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Definition
| Earthquakes are caused by the vibration of earth produces by the sudden release of energy |
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Term
| Describe the location of an epicenter and focus |
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Definition
| Epicenter is the location on the surface of earth directly above the focus |
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Term
| What is the elastic rebound hypothesis? How does it relate to an earthquake? |
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Definition
| Elastic rebound hypothesis is the release of built-up energy. Most earthquakes are produced by the release of elastic energy stored in rocks that has been subjected to great forces |
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Term
| Describe the aftershock and fore shocks. |
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Definition
| Aftershocks are small quakes that come after a major earthquake. Foreshocks are small quakes that come before earthquakes. |
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Term
| How are earthquakes measured? |
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Definition
| Two different types of measurements to describe the size of an earthquake - Intensity and Magnitude |
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Term
| Describe the following earthquake waves: surface, S waves, and P waves |
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Definition
| Surface waves= shake particles at right angles to their direction and travel |
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Term
| How do scientist locate earthquakes? |
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Definition
| The difference in of P waves provides a way to locate the epicenter and they can use seismograph |
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Term
| Where do most earthquakes occur? |
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Definition
| Most of the earthquakes occur around the outer edge of the pacific ocean. |
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Term
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Definition
| Stable soil turns into a liquid that is not able to support the building or other structures |
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Term
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Definition
| They are triggered by earthquakes |
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Term
| What are some other dangers that can occur due to earthquakes? |
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Definition
| Landslides and ground substances or the sinking of the ground and also fires |
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Term
| Describe the layers of the earth: |
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Definition
| Crust-lithosphere, Mantle-Asthenosphere, Outer Core, Inner Core |
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Term
| Describe the continental drift: |
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Definition
| The continents had once been joined to form a single superconitent |
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Term
| Who came up with the idea of continental draft? |
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Definition
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Definition
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Definition
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Term
| What kind of evidence is present to verify the idea of continental drift? |
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Definition
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Term
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Definition
| The upper most mantle along with the over laying crust behaves a strong rigid layer |
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Term
| How many plates are there? |
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Definition
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Term
| What happens at plate boundaries? |
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Definition
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Term
| Describe each boundaries and tell what is happening to each: |
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Definition
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Definition
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Term
| What are some evidences of plate tectonics: |
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Definition
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Term
| What is the driving force of plate tectonics? |
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Definition
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