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Atmosphere

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  • What means the gases around the Earth?
    atmosphere
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  • What word means what is happening in a specific place and time in the atmosphere?
    weather
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  • What element makes up 21% of the air around us?
    Oxygen
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  • What element makes up 78% of the air around us?
    Nitrogen
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  • What do we call gases in the air like Argon, Carbon Dioxide and Neon?
    Trace Gases
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  • What is an example of Oxygen being used up quickly?
    Flames
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  • What is a slow effect oxygen has?
    Rust
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  • This is made of 3 oxygen atoms.
    Ozone
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  • This is not the same thing as steam. What is water in gas form called?
    Water Vapor
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  • What do dense air molecules do?
    The stay close together.
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  • What happens to air molecules at high elevations/altitudes?
    The spread out.
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  • Is there more air pressure at sea level or on top of a mountain?
    At sea level
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  • What instrument measures air pressure?
    Barometer
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  • What does a mercury barometer have that an aneroid barometer does not?
    Liquid mercury
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  • Why is it difficult to breathe at the top of a mountain?
    The oxygen air molecules are more spread out so you need to take more breathes.
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  • What are 2 measurements for air pressure?
    Millibars and inches of mercury
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