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MJHS 7 Weather
Unit 4 Weather Reveiw
| Question | Answer |
|---|---|
| The conditions in the atmosphere right now | Weather |
| The average weather conditions over a long period of time | Climate |
| Most abundant gas in the atmosphere | Nitrogen |
| Percentage of nitrogen in the air | 78% |
| Percentagie of oxygen in the air | 21% |
| Percentage of oxygen at the top of Mt. Everest | 21% |
| Living things that produce oxygen | Plants |
| Living things that produce carbon dioxide | Animals |
| The two greenhouse gases are | Carbon dioxide and water vapor |
| The amount of mass per unit of volume is called | Density |
| Pressure is USUALLY measured in | inches of mercury |
| A tool for measuring air pressure is a | Barometer |
| The amount of force exerted over an area is called | Pressure |
| The type of barometer used by most people | Aneroid |
| As air pressure increases, air density | increases |
| The density of cooler air compared to warmer air | Cooler air is more dense |
| What happens to pressure as you go up in the atmosphere? | Decreases |
| Does temperature steadily decrease as you go up through the atmosphere into space? | No |
| The layer of the atmosphere closest to the surface. | Troposphere |
| The layer where all weather occurs. | Troposphere |
| The layer where ozone is found. | Stratosphere |
| The layer where Northern Lights occur. | Ionosphere or Thermosphere |
| The coldest layer. | Mesosphere |
| Includes the exosphere and ionosphere | Thermosphere |
| All the energy that drives the weather on earth comes from the | Sun |
| Only a small fraction of this actually reaches the earth. | Sun's energy |
| The sky is blue and sunsets are red due to | Scattering |
| Radiation that reaches the earth includes infrared, ultraviolet and | Visible light radiation |
| What happens to the energy coming to Earth from the sun? | Reflected or absorbed |
| This effect traps the reflected radiation and keeps Earth warm. | Greenhouse effect |
| This type of material heats quicker and cools faster | Land |
| What happens to the movement of particles if heat is added? | Faster movement |
| The transfer of energy from warm to cool is called | Heat |
| The direct transfer of energy is called | Radiation |
| The transfer of energy through contact is called | Conduction |
| The transfer of energy through cycling currents of gas or liquid is called | Convection |
| Which type of energy transfer is most responsible for heating the troposphere? | Convection |
| Wind is created by differences in | Air pressure |
| What type of local wind occurs near a beach during the day? | Sea breeze |
| When a land breeze occurs at night, what is warmer, the land or the body of water? | Body of water |
| What happens to air as it warms? | It rises |
| Is there one big wind belt that rises at the equator and sinks at the poles? | No |
| We call areas of winds located across the globe this: | Global wind belts |
| Wind always blows from | High to low pressure |
| Why do winds curve? | Coriolis Effect or spin of the Earth |
| The most direct rays of sunlight and the greatest intensity of heating occur here: | Equator |
| Wind belt that affects weather in the USA | Prevailing Westerlies |
| Area of no wind at the equator. | Doldrums |
| Area of no wind between the equator and the poles | Horse Latitudes |
| Wind belt closest to the equator | Trade Winds |
| Winds always turn this direction in the Northern Hemisphere. | Right |
| Part of the water cycle where liquid water turns to water vapor | Evaporation |
| Process that creates clouds | Condensation |
| Process of water escaping from plants | Transpiration |
| The amount of water vapor in the air compared to what the air can hold is called the | Relative humidity |
| Relative humidity is expressed as a | Percentage |
| The temperature at which water condenses out of the air (sometimes forming clouds) | Dew Point |
| If the air temperature reaches the dew point, would you expect a sunny or a cloudy day? | Cloudy |
| Very high dew points, especially when they are reached, predict this type of weather | Stormy |
| Cloud type whose name means "wispy" | Cirrus |
| Storm cloud | Cumulonimbus |
| Flat layered cloud | Stratus |
| Flat, rain cloud | Nimbostratus |
| First cloud to be observed when a warm front is approaching. | Cirrus |
| Typical rain cloud associated with a warm front | Nimbostratus |
| Cloud type whose name means "fluffy" | Cumulus |
| Precipitation can be this state of matter | Liquid or solid |
| Pollution can enter the water cycle and become part of the precipitation in this part of the water cycle | Runoff into bodies of water |
| Hailstones only form in this cloud type | Cumulonimbus |
| Hail only forms in this season | Summer |
| An air mass can be described by these two characteristics | Temperature and moisture |
| A maritime air mass formed over the | Ocean |
| A continental air mass formed over the | Land |
| A front that has two air masses against one another, but neither is moving. | Stationary |
| A rare front where a cold front boundary overtakes a warm front boundary. | Occluded |
| A front that produces gentle rain showers and brings in warmer air | Warm |
| The fastest moving front, often brings stormy weather | Cold |
| What kind of scientist studies and predicts the weather? | Meteorologist |
| What kind of scientist studies climate and its changes over time? | Climatologist |
| Symbol on a weather map that indicates a low pressure system | Red L |
| Symbol on a weather map that indicates equal areas of pressure | Isobars |
| Direction of air flow around a high pressure system | Clockwise |
| Does wind flow away from or towards a low pressure system? | Towards |
| Isotherms are lines on a map that connect equal areas of | Temperature |
| Generally, weather moves in this direction in the USA | West to East |
| Usually frontal boundaries are situated around these types of pressure systems. | Low |
| Symbol on a weather map that indicates a cold front | Blue triangles |
| The most severe thunderstorms are often located just out in front of a | Cold front |
Created by:
erica.sprague
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