Properties and composition of air QUIZ
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| Matter | something that is made up of atoms and has both mass and volume
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| Mass | the amount of matter that makes up an object
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| volume | the amount of space an object takes up
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| density | the amount of mass in a given volume (how light or heavy something is for its size)
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| air pressure | the weight of air in the atmosphere exerting a force on a surface
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| How are mass and volume alike? | in an object they never change
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| Units used to measure mass | grams, ounces, pounts, tons
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| Which property of matter changes depending on the gravitational pull? | weight
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| What determines an object's ability to float? | density
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| atmosphere | the envelope? of gases that surround the planet
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| weather | condition of the earth's atmosphere at a particular time and place
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| atom | smallest unit of a chemical element that can exist by itself
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| molecule | made up of two or more atoms
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| 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
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| The properties of air are... | mass, volume, density and pressure
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| Everything around us is made of | matter
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| altitude | the height above sea level
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| As you go up in altitude, temperature... | decreases
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| As you go up in altitude, air density... | decreases
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| how did earth get its oxygen? | life, which first appeared in the form of bacteria
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| 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.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
EmmaBC