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weather to compass
This stack covers the vocabulary for the first quiz.
| Term | Definition |
|---|---|
| weather | The changing conditions of the atmosphere at a given time and place |
| thermometer | Used to measure the temperature |
| barometer | Used to measure air pressure |
| hygrometer | Used to measure humidity |
| anemometer | Used to measure wind speed |
| compass | Used to determine wind direction |
| humidity | The amount of water vapor in the air |
| compress/contract | Forcing molecules to take up less space |
| expand | Molecules taking up more space and spreading out |
| mass | The amount of matter in an object |
| weight | The amount of gravity on an object |
| Exosphere | last layer; satellites |
| Thermosphere | hottest; thickest; contains the ionosphere |
| Mesosphere | middle layer; contains shooting stars |
| Stratosphere | above Troposphere; contains the ozone layer |
| Troposphere | thinnest; weather; where we live |
| solstice | longest/shortest day; summer/winter; June & Dec 21 |
| equinox | equal hours of day and night; fall and spring; Sept & March 21 |
| perihelion | when Earth is closest to the Sun; shortest distance to Sun |
| aphelion | when Earth is farthest away from the Sun; longest distance to Sun |
| direct light | the Sun strikes the Earth at a 90 degree angle; smaller area; intense; warmer |
| indirect light | the Sun strikes the Earth at an angle less than 90 degrees; larger area; dimmer; cooler |
| kinetic energy | energy of motion or movement |
| heat | the amount of kinetic molecular motion in an object |
| temperature | the measure of the amount of molecular energy in an object |
| radiation | heat energy that transfers through the air in waves or rays |
| conduction | heat energy that transfers when objects touch |
| convection | transfer of heat in fluids because of differences in density due to temperature differences |
| density | the amount of matter in a volume of material; D=M/V |
| convection cell | an individual cycle of heating, rising, cooling, and sinking |
| water vapor | the gas state of water |
| evaporation | a liquid becoming a gas; heat is needed |
| condensation | a gas becoming a liquid; cold surface is needed |
| saturated | full; cannot hold any more |
| relative humidity | amount of water vapor you have compared to the amount needed to saturate the air at a given temperature |
| transpiration | water moving in plants from roots to leaves |
| dew point | temperature at which condensation occurs |
| condensation nuclei | small particles on which water vapor condenses |
| precipitation | any form of water falling from clouds |
| wind | movement of air from areas of high to areas of low pressure |
| sea breeze | from sea to land; land is warmer than water; day |
| land breeze | from land to sea; water is warmer than land; night |
| differential heating | different Earth materials heat at different rates |
| isobars | lines on a pressure map |
Created by:
shelly_spangler
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