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science vocab 1 ch
all the science vocabulary words in chapter 1
Question | Answer |
---|---|
weather | conditions of earth's atmosphere at the particular time and place |
atmosphere | layers of gas that surround the planet |
ozone | form of gas that surrounds the planet |
water vapor | water in a form of gas |
pollutants | harmful substances in the air, water or soil |
acid rain | rain that contains more acid than normal |
photochemical smog | the brown haze that forms in cities |
density | the amount of mass in a given volume of air |
pressure | the force pushing on an area or surface |
air pressure | result of the weight of a column of air pushing down on an object |
mercury barometer | consist of a glass tube open at the bottom end and partially filled with mercury |
aeroid barometer | has an air tight metal chamber |
altitude | elevation is the distance above sea level |
troposphere | lowest layer of earth's atmosphere |
stratosphere | extends from the top of the troposphere to about 50 kilometers above earth's surface |
mesosphere | above the stratosphere, and drop in temperature marks the beginning of the next layer |
thermosphere | the outermost layer of the atmosphere, extends from 80 kilometers above earth's surface outward into space |
ionosphere | the lower layer of the thermosphere |
aurora borealis | the northern lights, also occur in the ionsphere |
exosphere | outer layer of the thermosphere |