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W,W, and Atmosphere
| Question | Answer |
|---|---|
| the scientific study of weather | meteorology |
| a person who studies the causes and effects of Earth's weather | meteorologist |
| weather that is dangerous or causes damage | severe weather |
| let people know what kind of weather to expect in the next day or next week | forecasts |
| when a specific amount of air is forced into a smaller space, the air is _____. | compressed |
| when the compressed air pushes back, this push is called _____. | pressure |
| _________ ________ are properties of air that affect weather. | weather factors |
| the gases surrounding Earth are called the _____. | atmosphere |
| _____ is the amount of matter in an object. | mass |
| _____ is the force an object exerts because of gravity. | weight |
| measures temperature. temperature is measured in degrees. this is used in Celsius (C*) and Fahrenheit (F*) | thermometer |
| used to determine the direction from which the wind is coming. measured in cardinal directions | compass |
| measures wind speed. miles per hour | anemometer |
| measures relative humidity. relative humidity is the amount of water vapor in the air. It is a percentage. it is a percentage. | hygrometer |
| measures air pressure. measured in millibars and inches of mercury | barometer |
| _____ is the stuff that everything in the world is made of. | matter |
| Mass is measured in _____. | grams |
| to confirm something has mass, it must be _____. | weighed |
| ____ is pull or force between Earth and the matter in an object or substance. | weight |
| _____ ___ ___ slightly at different places on Earth. | weight can vary |
| in outer space, away from planets, objects become weightless, but their ____ ___ ____ ____. | mass does not change |
| how many layers are there in the atmosphere? | four |
| how are the layers classified? | changes in temperature |
| the four layers of the atmosphere | troposphere, stratosphere, mesosphere, thermosphere |
| we live in the lowest, inner layer of the atmosphere.it's where weather occurs. the depth is 16 km above the equator to less than 9 km above the poles | troposphere |
| top of troposphere to 50 km. second layer and it contains the ozone layer. it protects earth's living things from ultraviolet radiation from the sun | stratosphere |
| 50 km above earth's surface to 80 km. layer that protects earth's surface from meteoroids | mesosphere |
| outermost layer of atmosphere. 80km to space. divided into two layers | thermosphere |
| begins 80km to 400km. auroras occur | ionosphere |
| outer layer | exosphere |
| contains almost all the mass in atmosphere | troposphere |
| as altitude increases in the troposphere, temperature also increases | false |
| at the top of the troposphere, the temperature stops decreasing | true |
| the temperature of the lower section is about -60*C. middle portion contains a ozone layer | stratosphere |
| temperatures approach -90*C in outer layer. protects earth's surface from meteoroids | mesosphere |
| outermost layer. air is very thin. no definite outer limit | thermosphere |
| why is the thermosphere so hot? | it has nitrogen molecules which convert the solar energy into heat. |
Created by:
stephaniedo