Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
weather unit vocab
| Term | Definition |
|---|---|
| Atmosphere | the mixture of gasses that sorounds the air |
| Air pressure | the measure of the force with which particles in the air push on an area of a surface |
| troposphere | lowest layer of the atmosphere |
| stratosphere | layer of the atmosphere above the troposphere |
| mesosphere | layer above the stratosphere |
| ionosphere | layer above the mesosphere |
| exosphere | layer above the ionosphere |
| thermosphere | outermost layer of the atmosphere |
| ozone layer | the area of the stratosphere with lots of ozone |
| greenhouse effect | when gasses in the atmosphere absorb and give off infared radiation |
| temperature | a measure of the average kinetic energy of particles |
| thermal energy | total kinetic energy of particles |
| thermal expansion | the increase in volume that results from an increase in temperature |
| heat | the energy that is transferred between two objects that are at different temperatures |
| radiation | the transfer of energy through electromagnetic waves |
| convection | the transfer of energy due to the movement of matter |
| conduction | the transfer of energy through direct contact |
| wind | the movement of air caused by differences in air pressure |
| Coriolis effect | the apparent curving of the path of a moving object from an otherwise straight path due to earth's rotation. |
| jet stream | narrow belts of high speed winds that blow west to east, between 7 km and 16 km above earths surface |
| local wind | the movement of air over short distances |
| sea breeze | a cool breeze coming off the sea |
| land breeze | when wind blows from the land to the water |
| mountain breeze | when wind goes down into a valley |
| valley breeze | when a breeze goes out from a valley |
| global wind | pressure belts every 30 degrees of latitude and the Coriolis effect produces patterns of calm areas of wind |
| trade wind | this brings cold air to warmer parts |
| westerlies | wind travelling from west to east |
| plolar easterlies | wind travelling from east to west in the polar region |
| doldrum | trade winds from both hemispheres |
| horse latitudes | when air stops moving and sinks |
| weather | the condition of earth's atmosphere at a given time and place |
| humidity | the amount of water vapor in the air |
| relative humidity | the water vapor in the air compared to the needed water vapor to reach saturation |
| dew point | when more condensation than evaporation occures |
| precipitation | ant form of water that falls to earth |
| cirrus | cloud forming wispy streaks at low altitude |
| cumulus | a cloud forming surrounded masses heaped on each other at a low altitude |
| stratus | a cloud forming a continuous horizontal gray sheet, often with rain or snow |
| air pressure (density) | force of air's molecules pushing on an area |
| high pressure system | a condition of the atmosphere in which the pressure is above average |
| low pressure system | when the pressure is below average |
| air mass | a body of air with horizontally uniform temperature, humidity, and pressure |
| front | the boundary between two air masses that have different temperatures or humidity |
| warm front | when warm air masses follows a warm air mass |
| cold front | when cold air pushes warm air up |
| stationary front | when a warm/cold front stays still |
| occulded | to force air upward from earths surface |
| evaporation | when liquid water turns into water vapor |
| condensation | the change of state from a gas to a liquid |
| runoff | streams, rivers, and the water that flows over land |
Created by:
Fs5158
Popular Science sets