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| Atmospheric layer closest to the Earth |
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| Windless zone near the equator. |
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| Electrically-charged particles found in this layer. |
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| In the Northern Hemisphere these winds are responsible for the movement of much of the weather across the United States and Canada. |
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| This layer of the atmosphere merges into outer space. |
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| Caused by the Earth's rotation; bends wind and water currents |
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| The air above this location is heated more than any other place on Earth. |
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| Destroy ozone molecules in the ozone layer. |
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| Steady winds between the equator and 30 degrees latitude north and south. |
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| Air currents that blow near the north and south poles. |
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| Caused because the land heats and cools more quickly that water. |
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| Cool air flows from the land at night toward the sea, which is warmer. |
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| Cool air flows from the sea during the day toward the land, which is warmer. |
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| Topography, Mountains, Oceans, Latitude, Vegetation, etc. |
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| Factors that affect climate. |
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| Most common gas in the air. |
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| Caused when pollutants mix with oxygen and other chemicals in the presence of sunlight. |
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| Makes up 0 - 4% of the air in our atmosphere. |
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| Makes up 21% of the air in our atmosphere. |
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Definition
| Normally found in the upper Atmosphere; consists of 3 oxygens |
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Definition
| Without the 23.5% tilt on its axis, our planet would have _______. |
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| An imaginary line that runs longitudinally through the earth from the North Pole to the South Pole; an imaginary line about which the Earth rotates. |
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| An instrument for measuring the speed of the wind, or of any current of gas. |
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| Describes the average weather conditions in a certain place or during a certain season. |
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| Associated with calm, fine weather; a weather system with high atmospheric pressure at its center, around which air slowly circulates in a clockwise (northern hemisphere)circulation; IS A HIGH PRESSURE SYSTEM |
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| A system of winds rotating inward to an area of low atmospheric pressure, with a counterclockwise (northern hemisphere)rotation; another term for tropical storm; IS A LOW PRESSURE SYSTEM |
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| A type of front that forms when a warm or cold front stops moving. |
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| A front formed when a cold front overtakes a warm front and forces it aloft (upward). |
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| Named for where they are formed (Ex. polar, tropical, etc.) |
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| Is less dense than colder air, lighter than cold air, thinner than colder air, and holds more water vapor. |
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| Names for the "Christ Child" because it occurs around Christmas. |
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| Every 2 – 7 years, strong, westward-blowing trades winds subside or reverse(quit blowing), and WARM WATER slowly moves eastward across the Pacific, wreaking havoc as it goes. |
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| A COOLING 0f the water in the equatorial Pacific that occurs at irregular intervals and is associated with widespread changes in weather patterns complementary to those of El Niño, but less extensive and damaging in their effects. |
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| Seasons in the Northern Hemisphere when the Earth's Axis is pointing AWAY from the sun; Spring and summer in the Southern Hemisphere |
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| Seasons in the Northern Hemisphere when the Earth's Axis is pointing TOWARD the sun; Fall and winter in the Southern Hemisphere. |
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| A fronts typically bring in light rain and snow and moves more slowly. Warmer air lifts above the colder air. |
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| A front that typically cause thunderstorms and other severe weather. Cold fronts happen when cold air cuts a wedge under warmer air causing it to rise higher in the atmosphere. |
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