Terms in this set (43)
(tiān qì)weather-conditions in the atmosphere, such as temperature, humidity, precipitation, air pressure, wind direction and wind speed
(dà qì céng)atmosphere-a layer around the Earth that is made of a mixture of gases
(è liè tiān qì)severe weather-conditions in the atmosphere that can injure or kill people or cause major property damage, such as hurricanes, thunderstorms, and tornadoes
(Qì xiàng xué jiā)meteorologists-a scientist who observes weather and makes forecasts
(zhèng jù)evidence-data you collect during an investigation
(tú jiě)map key-a table that tells what each icon on the map represents. A map key is sometimes called a legend.
(wēn dù)temperature-a measure of the average movement of particles in matter
(xiāng duì shī dù)relative humidity-a measure of the amount of water vapor in the air compared to the maximum possible amount of water vapor that the air can hold at a particular temperature.
Relative humidity is given as a percent between 0 and 100.
(jiàng shuǐ)precipitation-water that falls to the ground as rain, snow, hail, or sleet
(Huá shì)Fahrenheit-a unit for measuring temperature. At sea level, water freezes at 32 degrees F and boils at 212 degrees F.
(Shè shì) Celsius-a unit for measuring temperature. At sea level, water freezes at 0 degrees C and boils at 100 degrees C.
(qì yā)air pressure-a measure of the force that air puts on each square inch of surface
(qì yā jì)barometer-an instrument used to measure air pressure
(fēng)wind-the movement of air
(yù bào)forecast-to predict
(qì hòu)climate-the normal weather conditions of an area, throughout the year, averaged over many years
(qì hòu xué jiā)climatologist-a scientist who studies the world's weather patterns
(yǔ liàng jì)rain gauge-a tool used to measure precipitation (in inches)
(biǎo wēn)surface temperature-air temperature measured around 1.25 meters to 2 meters above the ground
(yè tǐ)liquid-matter is a definite volume but not a definite shape. A liquid takes the shape of its container (example: fills up the cup and takes the shape of a cup)
Particles in a liquid stay close together and slide past each other in a fluid motion.
(jiào duì)calibrate-to standardize a measuring instrument by comparing it with an accepted model.
(fēng biāo)wind vane-a tool for measuring wind direction
(fēng sù jì)anemometer-an instrument used to measure wind speed
(qū shì)trends-patterns you can see over time in data
(for example, in Chicago, you can see that the temperatures are always lower in January than they are in July)
(Qì hòu qū)climate region-a region of the United States for climate to be measured by an NOAA Regional Climate Center
(Qì hòu dài)climate zone-an area of the US that has particular weather characteristics
（fēng miàn）front-the area where 2 air masses come together
(qì tuán)air mass-a large volume of air of the same temperature, air pressure, and humidity
(nuǎn fēng)warm front-when a warm air mass meets a cooler air mass. the warm air rises up and over the cooler air.
where there is a warm front, the area becomes hotter and more humid. clouds form and sometimes there is precipitation with a warm front.
(lěng fēng)cold front-when a cold air mass meets a warmer air mass. the cold air moves under the warm air and pushes it up.
a cold front causes the area to become colder
(qiú gù fēng)occluded front-when a cold front catches up to a warm front. the cold front takes over. the temperatures become colder, and there are clouds and light rain/snow.
(jìng zhǐ fēng)stationary front-when a cold front meets a warm front and no movement occurs. there is often clouds and rain with a stationary front.
(yuán zǐ)atom-the basic, tiny unit of matter.
atoms are used to make up EVERYTHING.
(fēn zǐ)the combination of 2 or more atoms. This example is a molecule with 2 hydrogen atoms and one oxygen atom.
(lǐniàn)theory-a statement that explains some facts or a phenomena.
(dòng néng)kinetic energy-energy associated with an object that is MOVING.
(Wù zhí dòng lì xué lǐ lùn)kinetic theory of matter-a theory that says that ALL matter is made up of tiny particles that are always MOVING
(Chuán dǎo)the transfer of heat through direct contact (touching)
(duì liú)convection-the transfer of heat in a liquid or gas. warm liquid/gas will rise and cold liquid/gas will sink.
(fú shè)radiation-the transfer of energy by electromagnetic waves
(qì tǐ）gas-matter without a definite shape; it takes the shape of the container it is in.
the particles in a gas are far apart and move quickly.
(diàn cí bō)electromagnetic waves-a form of energy (examples: light, ultra-violet rays, infrared rays) that can travel through a vacuum
(tài yáng néng)solar energy-energy from the Sun. Solar energy travels through space as electromagnetic waves to reach the Earth.
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