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3. Weather Patterns
DDMS 7th Grade - Chapter 4
| Question | Answer |
|---|---|
| Air Mass | A large body of air with similar temperature, humidity, and air pressure |
| Tropical | A warm, low pressure air mass |
| Polar | A cold, high pressure air mass |
| Maritime | A humid air mass, that forms over an ocean |
| Continental | A dry air mass, that forms over land |
| Front | The boundary where two air masses meet |
| Occluded | A warm air mass that has been caught between two cold air masses, and is cut off from the ground |
| Cyclone | A swirling center of warm, humid, low pressure air, where wind spirals inward |
| Anticyclone | A swirling area of cool, dry, high pressure air, where wind spirals outward |
| Storm | A violent disturbance in the atmosphere, caused by a sudden change in pressure |
| Thunderstorm | A small storm that brings heavy precipitation, and thunder and lightning |
| Lightning | A spark caused by the electrical charges in a cloud |
| Tornado | A rapidly whirling, funnel-shaped cloud, that touches the Earth’s surface |
| Hurricane | A tropical cyclone that has winds greater than 119 km per hour |
| Storm Surge | The water that sweeps across the coast where a hurricane lands |
| Evacuate | To temporarily leave an area where a storm is expected |
| Meteorologist | Scientists who study and try to predict weather |
| Isobar | Lines on a weather map, joining places that have the same air pressure |
| Isotherm | Lines on a weather map, joining places that have the same temperature |
Created by:
jfakins
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