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Weather Ch 14 & 15
Grade 6 Science
| Question | Answer |
|---|---|
| On a weather map, these join places that have the same air pressure | isobars |
| On a weather map, these join places that have the same temperature | isotherms |
| When Earth's surface is heated, it radiates some of the energy back into the atmosphere as _______. | infrared radiation |
| What are the 3 ways that heat is transferred? | conduction, radiation, and convection |
| When heat is transferred by touching a heat source, that is _____________. | conduction |
| Earth's major wind belts | trade winds, prevailing westerlies, polar easterlies |
| A ____________ forms when cold air moves underneath warm air, forcing the warm air to rise. | cold front |
| A ___________ forms when warm air moves over cold air. | warm front |
| Most of the energy that heats Earth's atmosphere is | ultraviolet radiation |
| Heat from a fire reaches you by______ | radiation |
| A ___________ occurs when a warm air mass and a cold air mass meet and NO movement occurs | stationary front |
| Convection takes place because | cold air is denser than warm air (p. 477 + p. 500) |
| When a warm air mass is caught between two cooler air masses which kind of front occurs? | an occluded front (p. 501) |
| When you feel the sun's warmth on your face, the heat is being transferred by ______. | radiation (p. 469) |
| Most of the heating of the troposphere is caused by ______. | convection (p. 470-471) |
| Winds are caused by differences in ____ | air pressure |
| Winds that blow over short distances | local winds |
| Winds that blow steadily from a specific direction and over long distances | global winds |
| a horizontal movement of air from an area of high pressure to an area of lower pressure | wind |
| All winds are caused by differences in | air pressure |
| Most differences in air pressure are caused by | unequal heating of the atmosphere |
| regions near the equator with little or no wind | doldrums |
| Energy from the sun travels to Earth in the form of | electromagnetic waves |
| What kind of front moves quickly and can cause sudden weather changes, including thunderstorms followed by clear skies? | cold front |
| A moving warm air mass collides with a slowly moving cold air mass. This is called a | warm front |
| What tool is used to measure relative humidity? | a psychrometer |
| A scientist who studies the causes of weather and tries to predict it | a meteorologist |
| a warm water current that occurs every 2 to 7 years in the tropical Pacific Ocean, causing changes in winds, currents, and weather patterns that can lead to dramatic climate changes | El Nino |
| can cause sunburns, skin cancer, and eye damage | the sun's ultraviolet radiation |
| the process by which heat is trapped in the atmosphere by water vapor, carbon dioxide, methane, and other gases that form a "blanket" around the earth | the greenhouse effect |
| increased cooling caused by the wind | wind-chill factor |
| sea and land breezes over a large area that change directions with the SEASONS | monsoons |
| bands of high-speed winds about 10-kilometers above Earth's surface | jet streams |
| an instrument used to measure temperature | a thermometer |
| What occurs at night, a land breeze or a sea breeze? | land breeze |
| What occurs during the day, a land breeze or a sea breeze? | sea breeze |
| When air flows from the land to the water it is called a ________ | land breeze |
| When air flows from the water to the land it is called a _____. | sea breeze |