BW 6th gr Meteolology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the layers of the atmosphere - starting from the Earth going upwards? | Troposphere, Stratosphere,Mesosphere,Thermosphere, Ionosphere,Exosphere
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| Which layers does the weather of the Earth occur in? | Troposphere
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| Barometer | Is an instrument that is used to measure changes in air pressure.
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| What is a Aneroid barometer? | A smaller portable instrument without using liquid that measures changes in air pressue
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| What is a Mercury barometer? | First barometer invented containing mercury - Consists of a glass tube open at the bottom end partially filled with mercury. - It contains no air. Greater air pressure pushes mercury higher a decrease in air pressure the mercury will fall
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| What is a Weather vane | Shows the direction of wind - ususally on the top of a roof
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| What is a Rain gauge | Instrument used to measure the amount of precipitation. consisting of an openeded can topped by a collecting funnel with a collecting tube and measuring scale
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| What is a Psychrometer | Instrument used to measure relative humidity consisting of a wet bulb thermometer and dry bulb thermometer
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| Difference between weather and climate | Is the condition of the atmosphere at a particular place and time.
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| What is Climate? | Refers to the average - year after year - conditions of temperature, precipitation, winds, and clouds in an area.
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| What two gases do we have most of in our atmosphere? | Nitrogen and Oxygen
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| What happens to air pressure as altitude increases and decreases? | Air pressure decreases as altitude increases
Air pressure increases as altitude decreases
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| What causes winds? | Are caused by differences in air pressure - which are the result of unequal heating of Earths surface
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| What are local winds | Are winds that blow over short distances and are caused by unequal heating of Earths surface within a small area (water toward the beach)
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| What are global winds | Is the movement of air between the equator and the poles
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| What is an Anemometer? | Is an instrument used to measure wind speed. It has three or four cups mounted at the ends of spokes that spin on an axle.
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| What is relatiive humidity? | Is the percentage of water vapor in the air compared to the amount of water vapor the air could hold. Can be measured with a psychrometer
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| How do clouds form | When water vapor in the air becomes liquid water or solid ice (ice crystals).
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| What are the 3 main types of clouds? illustrate a small drawing of each | Cumulus, stratus and cirrus
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| What is precipitation? Give examples | Precipitation is any form of water that falls from the clouds and reaches Earths surface. Rain, Freezing rain, Sleet, Hail, snow
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| What are the major air masses that affect North America - Describe | Maritime tropical, continental tropical, maritime polar, continental polar
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| Maritime Tropical are | Warm humid air masses form over oceans near tropics - form over the Gulf of Mexico and Atlantic ocean and move first into south eastern US
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| Continental tropical is | AIr masses from the southwest bring hot dry air to the southern great plains - form only in summer over dry areas Southwest and northern Mexico
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| Maritime polar is | Cool humid air masses form over the icy cold North pacific and North Atlantic oceans.
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| Continental polar is | Air masses form over central and northern Canada and Alaska.
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| What are the main types of fronts? | When air masses collide they form - Cold front,warm fronts, stationary fronts and occluded fronts.
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| Cold fronts are | Forms when fast moving cold air mass runs into a slow moving warm air mass.
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| Warm fronts are | Forms when a warm air mass moves over cold slow moving air mass
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| Stationary fronts are | When two air masses meet (cold and warm) and stall over an area.
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| Occluded fronts are | Is when a warm air mass is caught between two cooler air masses.
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