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109 Cards in this Set
- Front
- Back
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Heavy dense air that sinks
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cold air
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A storm with extremely high winds that develops over an area of warm tropical ocean
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hurricane
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air expanding several times very quickly creating booming sounds
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thunder
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Droplets of water that freeze in layers around a nucleus of ice an become larger as air currents toss them up and down during severe thunderstorms
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Hail
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Whirling funnels of air
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Tornados
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A cold air mass invading a warm air mass bringing rain showers and thunderstorms followed by cooler temperatures
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Cold front
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Warm air mass meeting a cold air mass bringing rain and snow
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warm front
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what is evaporation
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the sun taking water into the atmosphere as water vapor
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What is condensation
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water vapor condensing around dust particals in the air and form together as clouds
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What is precipitation
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Any form of water falling from clouds in the sky
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The two most abundant gases in the atmosphere are?
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Nitrogen and oxygen
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Instruments used to measure air pressure are called?
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Barometer
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What units are used to measure air pressure?
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inches of mercury
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What happens to air pressure as you rise farther in the atmosphere?
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in decreses
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From earth to space, the main layers in our atmosphere are...?
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trophosphere, stratosphere, mesosphere, thermosphere
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Which layer of the atmosphere does weather occur?
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trophosphere
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What state of matter is water vapor?
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Gas
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The layers of the atmosphere are classified according to changes in the?
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temperature
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The ozone layer in the stratosphere absorbs?
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radiation
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What is the formula for density?
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D=m/v
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Wavelengths that are a bit shorter than visible light are?
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Ultraviolet light
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The greenhouse effect is?
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When energy from the sun is absorbed and remitted into the atmosphere as heat, the heat is trapped by carbon dioxide layer, heating the trophosphere
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The freezing point of pure water on the celsius scale is?
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0C
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Why does convection take place?
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As liquid molecules move, they carry their heat with them
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winds are caused by differences in?
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air pressure
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When climbing a high mountain, you get out of breath easily because?
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the oxygen levels decrease as well as pressure and density
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relative humidity can be measured with a/ an?
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Psychrometer
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Moisture will form faster on a class when the air is?
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cold
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large clouds that often produce thunderstorms are called
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cummulonimbus-thunderheads
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Very high feathery clouds are called?
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cirrus
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Wavelengths that are a bit shorter than visible light are?
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Ultraviolet light
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The greenhouse effect is?
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When energy from the sun is absorbed and remitted into the atmosphere as heat, the heat is trapped by carbon dioxide layer, heating the trophosphere
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The freezing point of pure water on the celsius scale is?
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0C
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Why does convection take place?
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As liquid molecules move, they carry their heat with them
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winds are caused by differences in?
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air pressure
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When climbing a high mountain, you get out of breath easily because?
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the oxygen levels decrease as well as pressure and density
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relative humidity can be measured with a/ an?
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Psychrometer
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Moisture will form faster on a class when the air is?
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cold
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large clouds that often produce thunderstorms are called
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cummulonimbus-thunderheads
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Very high feathery clouds are called?
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cirrus
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Wavelengths that are a bit shorter than visible light are?
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Ultraviolet light
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The greenhouse effect is?
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When energy from the sun is absorbed and remitted into the atmosphere as heat, the heat is trapped by carbon dioxide layer, heating the trophosphere
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The freezing point of pure water on the celsius scale is?
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0C
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Why does convection take place?
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As liquid molecules move, they carry their heat with them
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winds are caused by differences in?
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air pressure
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When climbing a high mountain, you get out of breath easily because?
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the oxygen levels decrease as well as pressure and density
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relative humidity can be measured with a/ an?
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Psychrometer
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Moisture will form faster on a class when the air is?
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cold
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large clouds that often produce thunderstorms are called
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cummulonimbus-thunderheads
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Very high feathery clouds are called?
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cirrus
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Any form of water that falls from clouds is called?
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Precipitation
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Heat transfer between two substances that are in contact is called?
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Conduction
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Wind speed is measured by a/an?
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Aneometer
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Cold, dry air affecting the northern United states in the winter often comes from what type of air mass?
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Continental polar
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Weather associated with an anticyclone is generally?
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Dry clear
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Isobars are lines on a map joining places that have the same...?
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Ai9r pressure
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One of the best places to seek protection during a tornado is...?
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The basement of a well structured house
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Thunderstorms form within what type of cloud?
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Cummulonimbus or thunderhead
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Thunderstorms form within what type of cloud?
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Cummulonimbus or thunderhead
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Lightning is caused by?
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by a dischargeof electircal energy built up in a thundercloud (kinda like putting water in a plug) BIG SPARK!!!!!!!
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Why are inversions a concern for denver?
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It traps pollution
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what is the reason the earth is heated unevenly?
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Air currents, ocean currents and the tilt of the earth
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Why does hot air rise?
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it is less dense
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Air in the atmosphere has pressure because....?
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Because air molecules are constantly pussing from every direction, like textbooks being stacked on top of eachother
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The National weather Service measures air pressure in units called?
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Milllibars
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The layer in our atmosphere in which weather occurs is the
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trophosphere
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The gases in our atmosphere aside from oxygen and nitrogen make up about what percentage of air?
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1%
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Land breezes occur because?
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The cool air moves to take the warm air's place as the warm air rises
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What are the doldrums
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very calm, no winds around the equator
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Lightning is caused by?
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by a dischargeof electircal energy built up in a thundercloud (kinda like putting water in a plug) BIG SPARK!!!!!!!
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Why are inversions a concern for denver?
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It traps pollution
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what is the reason the earth is heated unevenly?
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Air currents, ocean currents and the tilt of the earth
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Why does hot air rise?
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it is less dense
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Air in the atmosphere has pressure because....?
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Because air molecules are constantly pussing from every direction, like textbooks being stacked on top of eachother
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The horse latitudes are located...?
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30 degrees north and South
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A cloud cover symbol that is 3/4 black and 1/4 white means?
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75% cloud cover
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One difference between cyclones and anticyclonnes is...?
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Cyclones are associated with low air ressure and anticyclones are associated with high air pressure
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What is near the end of both March and sptember?
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Equinox
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Chlorofluorocarbons were used in the past in?
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Styrofoam cups
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What phenomenon repeats itself about every 3-7 years and makes makes food supply in South America less plentiful?
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El- Nino
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What phenemenon repeats itself about every 3-7 years that causes fishing to be plentiful in peru and warmer temperatures in the winter in the US?
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La Nina
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What is a Neap tide?
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Tides are even, not much of a difference in high and low tides
when 1/4 or 3/4 moon is out |
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what is a spring tide?
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Great difference in high and low tides. When there is a full moon or new moon
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What is Alfred Wegener's hypothesis?
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All continents had once been joined together in a single land mass and have since then drifted apart
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Wegener named his supercontinent...?
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Pangea
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what did wegener think hhappened to this supercontinent?
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He thinks they slowly drifted apart
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What is an example of evidence from land features tahat supported Wegener's idea of continental drift?
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Flolded mountains found in South america and Africa that were almost identical
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Any trace of an Ancient organism preserved ina rock is called a
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Fossil
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How did Wegener think that mountains formed?
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That the continents bumped into eachother and slowly pushed rock up?
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The horse latitudes are located...?
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30 degrees north and South
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A cloud cover symbol that is 3/4 black and 1/4 white means?
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75% cloud cover
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One difference between cyclones and anticyclonnes is...?
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Cyclones are associated with low air ressure and anticyclones are associated with high air pressure
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What is near the end of both March and sptember?
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Equinox
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Chlorofluorocarbons were used in the past in?
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Styrofoam cups
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Step 1:agma erupst along midocean ridge
Step 2: Magma ____ to form new___________ Step 3: _____spreads away from________ |
Spreads, Oceanic crustSea floor, new crust
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A device that bounces sound waves off underwater objects is called.../
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Sonar
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What stress force is on a Reverse fault?
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Compression
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What is the movement along a Reverse fault?
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Hanging wall is above the foorwall
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What is the stress force for a Normal Fault?
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tension
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What is the movement along fault for a Normal fault?
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Flootwall below hanging wall
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What is the stress force for a strike-slip fault
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shearing
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What is the movement along a strike slip fault?
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The plates are sliding against each tother
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What is a fault block mountain?
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AA NORMAL FAULT PUSHING UP A BLOCK OF ROCK
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wHAT IS aNTICLINE?
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afold in a rock that bends upwards
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What is the focus?
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the point on the surface directly above where an earthquake occurs
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What is the epicenter?
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The point on the surface directly above where an earthquake occurs
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What is surface waves?
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Slowest seismic waves that produce the most severe ground movements. like a wave
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Seismograph
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Records ground movements caused by seismic waves as they move through the Earth
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In what order do the three types of seismic waves arrive at ta seismograph?
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Primary, secondary, and surface
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