Science Vocab flashcards used to study for test
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| Atmosphere | a mixture of gases that surrounds some planets
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| Air Pressure | The measure of the force with which particles in the air push on an area of a surface
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| Troposphere | the lowest layer of the atmosphere
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| Stratosphere | the layer above the troposphere
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| Mesosphere | The atmosphere layer above the stratosphere
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| Ionosphere | the layer above the mesosphere
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| Exosphere | The top layer of the atmosphere
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| Thermosphere | The uppermost layer of the atmosphere
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| Ozone Layer | The area of the stratosphere between 15 km and 40 km, has large amounts of ozone
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| Greenhouse Effect | The process in which gases in the atmosphere absorb and give off infared radiation
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| Temperature | The measure of the average kinetic energy of particles
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| Thermal energy | The total kinetic energy of particles
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| Thermal Expansion | The increase in volume that results from incrase in temperature
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| Heat | The energy that is transfered between objects that are at different temps
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| Radiation | The tranfer of energy throught electro-magnetic waves
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| Convection | The transfer of energy through the movement of matter
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| Conduction | The transfer of energy through direct contact
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| Wind | The movement of air through difference in air pressure
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| Coriolis Effect | The aparent curving of the path of a moving object from a other wise straight path
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| Jet Stream | Narrow belts of high speed winds that blow from east to west
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| Local wind | Movement of air over short distances
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| Sea Breeze | A cold breeze coming from an ocean lake or sea
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| Land Breeze | Winds that blow from land to water
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| Mountain Breeze | Local winds on mountains
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| Valley Breeze | A breeze that blows from a valley to a mountain
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| Global wind | Wind systems that occur at earths surface
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| Trade Winds | Trade winds blow between 30 degrees latitude and the equator at both hemispheres
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| Westerlies | Winds that blow 30 degrees and 60 degrees latitude in both hemispheres
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| Polar Easterlies | Really cold winds that move west because of the rotation of the earth
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| Doldrums | A calm area around the equator
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| Horse Latitude | Calm areas around 30 degrees latitude
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| Weather | Conditions of the atmospheric at a certain place or time
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| Humitity | The amount of water vapor in the air
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| Relative Humitity | The amount of wator vapor in the air to the amount needed for saturation
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| Dew Point | The temperature at which more condensation occurs than evaporation
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| Precipatation | Any form of water that falls to earth in from clouds
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| Cirrus | Feathery or wispy clouds made of ice crystals
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| Cumulus | Big puffy clouds that form in fair weather
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| Stratus | Clouds that form in thin flat layers
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| Air Pressure (density) | The force of air molecules pushing on an area
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| High Pressure system | Areas where air sinks and moves outwards
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| Low pressure system | have lower pressure than the sourrounding area
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| Air mass | A large volume of air in which temperature and moisture are nearly the same
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| front | a boundry between air masses
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| warm front | It forms when a warm air mass follows a retreating cold air mass
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| cold front | Forms when an air mass pushes up a warm air mass
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| stationary front | Forms when there is not enough wind for either the cold air mass or warm air mass to be pushed away
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| front | A boundry between air masses
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| evaporation | the change of state between a liquid becoming a gas
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| condensation | The change of state from a gas to a liquid
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| runoff | Streams, rivers and water that runs over land
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