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1. An abrupt discharge of electricity through the air:
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2. The state of the atmosphere at a certain time and place:
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8th Grade Ch 7, 8, 9
| Question | Answer |
|---|---|
| 1. An abrupt discharge of electricity through the air: | lightning |
| 2. The state of the atmosphere at a certain time and place: | weather |
| 3. The long, narrow lines of thunderstorms in a hurricane: | rain bands |
| 4. A localized storm involving lightning, thunder, strong winds, and heavy rain: | thunderstorm |
| 5. A concentrated downward blast of wind: | downburst |
| 6. A long line of advancing thunderstorms, usually moving ahead of a cold front: | squall line |
| 7. Lines of equal pressure on a weather map: | isobars |
| 8. A rotating column of air that starts on the ground and is not associated with a cloud: | dust devil |
| 9. Measures the distance from the ground to the base of the clouds: | ceilometer |
| 10. Indicates the direction of wind: | weather vane |
| 11. Measures the amount of precipitation: | rain gauge |
| 12. Uses radio waves to detect objects and measure their distance: | radar |
| 13. Measures wind speed: | anemometer |
| 14. Measures atmospheric pressure: | barometer |
| 15. Measures air temperature: | thermometer |
| 16. Measures relative humidity: | hygrometer |
| 17. A weather instrument that measures and transmits meteorological data from weather balloons to weather stations: | radiosonde |
| 18. The center of a hurricane: | eye |
| 19. A tornado that forms over water: | waterspout |
| 20. Maps that give a summary of the weather conditions throughout the entire country at a single point in time: | surface weather charts |
| 21. “Lines of equal heat” are known as: | isotherms |
| 22. Air that is warm near the ground but very cold at higher altitudes: | unstable |
| 23. A single updraft system in a thunderstorm: | cell |
| 24. The rapidly swirling cloud that is the most distinctive visual of a tornado: | condensation funnel |
| 25. Hurricanes are ranked on the ____________________ Hurricane Wind scale. | saffir-simpson |
| 26. Tornadoes are classified using the Enhanced ___________________ scale. | Fujita |
| 27. A circulating spiral of wind around a low-pressure system is a _____________________. | cyclone |
| 28. Air flowing down a mountain’s slope due to differences in temperature and pressure is an _________ wind. | katabatic |
| 29. The extremely powerful radiation that comes from deep space is called: | cosmic rays |
| 30. In clouds with temperatures above the freezing point, rain forms by the: | collision-coalescence |
| 31. What is the movement of water from the earth’s surface, into the air, and back to the surface? | water cycle |
| 32. What is the coldest point in the atmosphere? | mesopause |
| 33. The boundary formed when a cold air mass moves into the territory of a warm air mass is a(n) ______ front. | cold front |
| 34. A thick, brownish haze that results from vehicles and factories: | photochemical smog |
| 35. The convection cell that exists between the equator and 30 degrees: | Hadley |
| 36. Surface winds that blow from high-pressure regions toward the equator: | trade winds |
| 37. Which type of UV radiation is the least harmful? | UVA |
| 38. Which type of cloud is characteristically almond shaped? | lenticular |
| 39. Heat transfer by electromagnetic waves is: | radiation |
| 40. What is the most abundant gas in the homosphere? | nitrogen |
| 41. The boundary between two air masses is: | front |
| 42. What is considered the outermost layer of the atmosphere? | exosphere |
| 43. The shock wave produced as lightning heats the air is: | thunder |
| 44. The most intense type of downburst: | microburst |
| 45. The elevated water level caused by a hurricane’s winds is the: | storm surge |
| 46. The farthest distance at which objects can be distinguished is the: | visibility |
| 47. A narrow funnel of powerful, rapidly whirling wind that stretches from a cloud to the ground is a: | tornado |
| 48. A fierce, single-updraft thunderstorm is a: | supercell |
| 49. A tropical cyclone with wind speeds between 39 mph and 74 mph: | tropical storm |
| 50. What are the 3 major factors that determine weather? | heat energy, uneven distribution of heat energy, water vapor |
| 51. What is water vapor in the air that touches the cooler ground and turns to a liquid: | dew |
| 52. Which air mass brings hot, dry weather? | continental tropical |
| 53. What occurs when an area receives an abnormally low amount of atmospheric water over a long period of time? | drought |
| 54. The water that falls to the earth, including rain, sleet, hail, and snow: | precipitation |
| 55. When the relative humidity is 100% the air is: | saturated |
| 56. What is a large, rotating updraft in a supercell thunderstorm? | mesocyclone |
| 57. The thunderstorm stage marked by the arrival of precipitation is the __________ stage. | mature |
| 58. A wind that reverses its direction from season to season is a: | monsoon |
| 59. A tropical cyclone with wind speeds of 74 mph or more is a: | hurricane |
| 60. What factors affect insolation? | greenhouse effect |
| 61. Which type of clouds are thunderstorm clouds? | cumulonimbus |
| 62. The change in the direction of winds caused by Earth’s rotation is the ___________ effect. | Coriolis |
| 63. Which type of front forms when two air masses push against each other but neither one advances? | stationary front |
| 64. Which of the following measures high-altitude weather conditions? | weather balloon |
| 65. Atmospheric pressure at sea level is ________ psi. | 14.7 |
| 66. Drops of liquid water that have a diameter of less than 0.5 millimeter and fall from clouds to Earth are _____. | drizzle |
| 67. What forms the brilliant flash of a lightning bolt? | return stroke |
| 68. An electron stream that jerkily travels from a cloud during a thunderstorm is a: | stepped leader |
Created by:
misschapman