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Science Vocab

Science Vocab flashcards used to study for test

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