Science 7 Chapter 3 vocab
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| weather | the condition of Earth's atmosphere at a particular time and place.
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| atmosphere | the envelope of gases that surrounds the planet
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| water vapor | water in the form of a gas
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| density | the amount of mass in a given volume of air
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| air pressure | the result of the weight of a column of air pushing an area
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| barometer | an instrument that is used to measure air pressure
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| mercury barometer | instrument that measures changes in air pressure, consisting of a glass tube partially filled with mercury, with its open end resting in a dish of mercury
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| aneroid barometer | instrument that measures changes in air pressure without using a liquid
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| altitude | elevation, the distance above sea level.
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| electromagnetic waves | a form of energy that can move through space
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| radiation | the direct transfer of electromagnetic waves
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| Wind | the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction
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| Anemometer | an instrument for measuring the speed of the wind, or of any current of gas
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| Windchill factor | a quantity expressing the effective lowering of the air temperature caused by the wind, especially as affecting the rate of heat loss from an object or human body or as perceived by an exposed person.
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| Sea breeze | a breeze blowing toward the land from the sea, especially during the day owing to the relative warmth of the land
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| local winds | a breeze in your local area
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| troposhpere | innermost layer of Earth's atmosphere
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| stratosphere | the layer of Earth's atmosphere above the troposphere
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| mesosphere | the layer of Earth's atmosphere below the thermosphere
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| thermosphere | the final layer of Earth's atmosphere
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| Troposphere | lowest layer of Earth's atmosphere
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| Stratosphere | Second lowest layer in Earth's atmosphere
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| Mesosphere | Middle layer of Earth's atmosphere
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| Thermosphere | Outermost layer of Earth's atmosphere
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| Ionosphere | Lowest part of thermosphere
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| Exosphere | Outer layer of thermosphere
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| Radiation | The direct transfer of energy by electromagnetic waves
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| Infrared radiation | Electromagnetic waves with wavelengths that are longer than visible light but shorter than mmicrowaves
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| Ultraviolet radiation | An invisible form of energy with wavelengths that are shorter then wavelengths for violet light
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| Scattering | Dust size particles and gases in the atmosphere disperse light in all directions
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| Greenhouse effect | The trapping of heat near a planets surface by certain gases in the planets atmosphere
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| Thermal energy | Measures the total energy of motion in the particles of a substance
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| Thermometer | Device that measures temperature- some have a thin tube with a bulb on one end that holds liquid mercury or colored alcohol
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| Heat | Thermal energy transferred from a hot object to a cool one
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| Convection | transferring heat through the movement of fluid
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| key consepts | 3.1
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| earths atmosphere consist of nitrogen,oxygen,carbon dioxide,water vapor, and other gasses as well as particles of liquids and solids. | events in one part of the atmosphere affect other parts of the atomesphere
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| 3.2 | Because air has mass,it also has other proprieties including density and pressure.
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| two common kinds of barometers are mercury barometers and android barometers | air pressure decreases as altitude increases. As air pressure decreases, so does density
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| 3.3 | scientists divide Earth's atmosphere into four main layers according to temperature
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| earth's weather occurs in the troposphere. The stratosphere contains the ozone layer. | the mesosphere protects Earth from meteoroids. the thremosphere is the outer most layers of earth's atmosphere
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| 3.4 | the suns energy travels as visible light,inferred radiation. and ultraviolet waves
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| some of sunlight is absorb or reflected by the atmosphere.Some of the energy Earth absorbs is radiated back out as inferred radiation | 3.5
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| Air temperature is usually measured with a thermometer. | heat is transferred in three ways: convention, conduction, and radiation
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| heat is transferred mostly by convention within the troposphere | 3.6
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| Differences in air pressure cause the air to move | Most differences in air pressure are caused by the unequal heating of the atmosphere
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| The unequal heating of earth’s surface within a small area cause local winds | Like local winds global winds are created by the unequal heating of earth’s surface.But unlike local winds global winds occur over a large area.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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