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Science Chpt 15 SG

Flashcards for Science Test on Chapter 15

QuestionAnswer
Earth's atmosphere is made up of _1_, _2_,_3_,_4_ vapor , & many other _5_, as well as particles of _6_ &_7_. 1)Nitrogen 2)oxygen 3)carbon dioxide 4)water 5)gasses 6)liquids 7)solids
How is Earth's atmosphere important to living things? A)it contains_1_ that's needed by many organisms B) It prvides _2_ by trapping energy from the sun C) It protects living things from dangerous _3_ & objects from __4__ 1) Oxygen 2)Warmth 3) radiation 4) outer space
What role does water vapor play in Earth's weather? "Water vapor forms clouds when it _1_ out of air to form tiny drops of water or crystals of ice. The droplets or crystals fall as rain or snow if they become _2_ enoguh" 1) condenses 2) heavy
What's the difference between water vapor and steam? Water Vapor: is invisible and is water in the form of gas Steam: is visible and is made up of tiny droplets of liquid water
__1__ is the condition of Earth's atmosphere at a particular time & place. 1) Weather
Instruments commonly used to measure air pressure are: __1__ barometer (doesn't use liquid) and __2__ barometer (uses liquid) 1) aneroid 2) mercury
Air pressure __1__ as altitude increases. As air pressure __2__, so does density. 1) decrease 2) decreases
Look for areas w/ the __1__ altitude: the further __2__ sea level goes, the __3__ air pressure (thinner air) one has to contend with. 1) highest 2) up 3) less
What changes in air pressure would you expect if you carried a barometer down a mine shaft? We should expect the air pressure to __1__ because the amount of air above would __2__ as we go downwards. 1) increase 2) increase
Created by: Jonhthreethirty
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