Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
weather |
the condition of earth's atmosphere at a particular time and place |
|
atmosphere |
the envelope of gases that surrounds the planet |
|
water vapor |
water in the form of a gas |
|
density |
the amount of mass in a given volume |
|
air pressure |
the weight of a column of air pushing on an area |
|
barometer |
an instrument used to measure air pressuree |
|
mercury barometer |
a long glass tube with one end open and the other closed |
|
aneroid barometer |
has an airtight metal chamber that is sensitive to air pressure |
|
altitude |
elevation, the distance above sea level |
|
troposphere |
inner, lowest layer of earth's atmosphere |
|
stratosphere |
the second layer of earth's atmosphere |
|
mesosphere |
the middle layer of the atmosphere |
|
thermosphere |
the outermost layer of the atmosphere |
|
ionosphere |
the lower layer of the thermosphere |
|
exosphere |
the outer layer of the thermosphere |
|
electromagnetic waves |
a form of energy that can move through a vacuum of space |
|
radiation |
a direct transfer on energy by electromagnetic waves |
|
infared radiation |
electromagnetic engery that has wavelengths longer than the wavelengths for red light |
|
ultraviolet radiation |
an invisible form of energy with wavelengths that are shorter than wavelengths for violet light |
|
scattering |
dust-sized particals and gases in the atmosphere disperse light in all directions |
|
greenhouse effect |
gases that turn hold heat in earth's atmosphere |
|
thermal energy |
total energy of a motion in the particals of a substance |
|
thermometer |
a device that measures temperature |
|
convection |
tranfer of heat by the movement of a fluid |
|
conduction |
transfer of heat between two substances that are in direct contact |
|
convection currents |
the upward movement of warm air and the downward movement of cool air |
|
wind |
movement of air parallel to earth's surface |
|
anemometer |
three or four cups at the end of spokes that spin on an axle |
|
windchill factor |
increased cooling that a wind can cause |
|
local winds |
winds that blow over short distances |
|
global winds |
winds that blow steadily from specific directions over long distances |
|
coriolis effect |
the way earth's rotation makes winds curve |
|
lattitude |
the distance from the equator measured in degrees |
|
sea breeze |
local wind that blows from an ocean or lake |
|
land breeze |
flow of air from land to a body of water |
|
temperature |
average amount of energy of a motion for each partical |
|
heat |
thermal energy that is transferd from a hotter object to a cooler one |