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Science

Properties and composition of air QUIZ

TermDefinition
Matter something that is made up of atoms and has both mass and volume
Mass the amount of matter that makes up an object
volume the amount of space an object takes up
density the amount of mass in a given volume (how light or heavy something is for its size)
air pressure the weight of air in the atmosphere exerting a force on a surface
How are mass and volume alike? in an object they never change
Units used to measure mass grams, ounces, pounts, tons
Which property of matter changes depending on the gravitational pull? weight
What determines an object's ability to float? density
atmosphere the envelope? of gases that surround the planet
weather condition of the earth's atmosphere at a particular time and place
atom smallest unit of a chemical element that can exist by itself
molecule made up of two or more atoms
earth's atmosphere is made up of these 78% of nitrogen, 21% of oxygen and 1% of carbon dioxide, water vapor, other gases and participles
The properties of air are... mass, volume, density and pressure
Everything around us is made of matter
altitude the height above sea level
As you go up in altitude, temperature... decreases
As you go up in altitude, air density... decreases
how did earth get its oxygen? life, which first appeared in the form of bacteria
How does the atmosphere make Earth suitable for life? The atmosphere contains oxygen and other gases that living things need. The atmosphere also keeps Earth's surface warm and protects Earth from dangerous radiation and meteoroids.
Created by: EmmaBC
 

 



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