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Ch. 11 Vocabulary
Ch. 11 vocab
| Question | Answer |
|---|---|
| What is a Sonar? | A device that determines the distance of an object under water by recording echoes of sound waves. |
| What is a Continental shelf? | A gently sloping, shallow area of the ocean floor thta extends outward from the edge of a continent. |
| What is a Continental slope? | A steep incline of the ocean floor leading down from a Continental shelf. |
| What is an Abyssal plain? | A smooth,nearly flat region of the deep ocean floor. |
| What is a Mid-ocean ridge? | An undersea mountain chain where new ocean floor is produced. |
| What is a Trench? | A deep, steep-sided canyon in the ocean floor. |
| What is a Intertidal zone? | An area that stretches from the highest high-tide line on land out to the point on the continental shelf exposed by the lowest low-tide. |
| What is a Neritic zone? | The area of the ocean thta extends from the low-tide out to the edge of the continental shelf. |
| What is an Open ocean zone? | The deepest, darkest area of the ocean beyond the edge of the continental shelf. |
| What is a Wave? | The movement of energy through a body of water. |
| What is Wavelength? | The horizontal distance between the crest of one wave and the crest of the wave. |
| What is Frequency? | The number of waves that pass a specific point in a given amount of time. |
| What is Waveheight? | The vertical distance from the crest of the wave to the trough. |
| What is a Tsunami? | A giant wave usually caused by an earthquake beneath the ocean floor. |
| What is Longshore drift? | The movement of water and sediment down a beach caused by waves coming into shore at a angle. |
| What is a Rip current? | A rush of water that flows rapidly back to sea through a narrow opening in a sandbar. |
| What is a Tide? | The daily rise and fall of Earth's waters on its coastlines? |
| What is a Spring tide? | A tide with the greatest difference between high and low tide that occurs when the sun and the moon are aligned with Earth at the new moon and the full moon. |
| What is a Neap tide? | A tide with the least difference between low tide and high tide that occurs when the sun and the moon pull at right angles to each other at the first and third quarters of the moon. |
| What is a Salinity? | The total amount of dissovled salts in a water sample. |
| What is a Submersible? | An underwater veficle built of strong materials to resist pressure. |
| What is a Current? | A large stream of moving water that flows through the ocean. |
| What is a Coriolis effect? | The effect of Earth's rotation ont the direction of winds and currents. |
| What is Climate? | The average, year-after-year conditions of temperature, precipitation, winds, and clouds in an area. |
| What is an El Nino? | A climate event that occurs every two years in the Pacific Ocean, during which winds shiftand push warm water toward the coast of South America. |
| What is Upwelling? | The movement of cold water upward from the deep ocean that is caused by winds. |
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