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pressure inside is increased when air is blown into it-caroline s.

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the air at the top of a mountain is a lot thinner than the air towards the bottom - Megan M

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pressure of the different altitudes- Caroline S.

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Air is a tasteless and odorless gas.
- Mason

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Air is a combination of gases not visible to us, made up of oxygen, nitrogen, etc.

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There is different pressure at different altitudes

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air is a invisible gas that made up of multiple different gases, such as oxygen, carbon dioxide, etc - Megan M.

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Air is several gases that are mixed together

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Air is several gases that are mixed together

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Air is an invisible gas that surrounds the Earth.

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Air is made up of multiple different gases - Avery

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Mixture of gasses that surrond the earth and fill the atmosphere. 

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Mixture of gasses that surrond the earth and fill the atmosphere. 

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When you blow into a balloon the air is contained inside it with no way of escape that why it inflates.

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The pressure is different at different altitudes - Melanie P

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At the top of a mountain, there is less oxygen in the air and the air is overall thinner and less dense at higher altitudes. At the bottom of a mountain, the air is denser. - Kate M.

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At the top of a mountain, there is less oxygen in the air and the air is overall thinner and less dense at higher altitudes. At the bottom of a mountain, the air is denser. - Kate M.

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There is less oxygen at the top of the mountain rather than the bottom. Also the air is cooler at the top due to less air molecules.

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Air is a mixture of many different gases

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your body is trying to get used to the different air pressures at the different altitudes - Avery

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Air is a combination of other gases and is clear and odorless. -Melanie P

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The air is much thinner and there is less oxygen because it is higher up in the atmosphere.

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Air is a mixture of different gases - Kate M.

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Air is a mixture of different gases - Kate M.

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Yes because air is matter, therefore it will have mass. - Mason

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As you go up in altitude, the oxygen concentration gets lower and lower in air, and it gets thinner and thinner - Avery

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Air is a different combinations of gases that are in the atmosphere like O2 and CO2

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Air is a different combinations of gases that are in the atmosphere like O2 and CO2

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Air is made up of different gases.

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Air does have mass becuse it is matter.

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air is put into the balloon and can't escape anywhere so it is held within the balloon - Avery

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Yes, for example, when the wind blows through hair it has to have a mass powerful enough to move it.

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The air pressure changes.

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There is no direction for the air to escape when in the balloon and the balloon become pressurized

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yes, air has mass because it is matter. Air is a mixture of elements and compounds, all of which, have their own masses - Avery

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There is less oxygen when you go up higher in altitude

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There is less oxygen when you go up higher in altitude

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yes, air has mass its matter so it has to have mass.

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yes, air has mass its matter so it has to have mass.

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Your ears pop when you are taking of a plane because as you increase in altitude, the air pressure decreases.

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pressurization in your ears changes

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When you blow in a balloon your filling it up with CO2 from your lungs. This pressurizes the balloon causing it to expand to make room for more gas.

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When you blow in a balloon your filling it up with CO2 from your lungs. This pressurizes the balloon causing it to expand to make room for more gas.

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Air is a combination of gases and is matter so it would have mass -josh

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it inflates because the air gets trapped into the balloon.

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it inflates because the air gets trapped into the balloon.

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you are forcing air into the balloon and that makes the rubber stretch. -josh

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you are forcing air into the balloon and that makes the rubber stretch. -josh

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At the top of a mountain the amount of air is thin making it hard to breath. 

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At the top of a mountain the amount of air is thin making it hard to breath. 

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Air is made up of different gases and not visible. 

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Air is made up of different gases and not visible. 

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Melanie L.

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the air you are blowing causes the pressure inside the balloon to grow and make it inflate. 

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the air you are blowing causes the pressure inside the balloon to grow and make it inflate. 

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Melanie L.

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Many molecules that bounce around in a space that seems almost unending on Earth - Caroline L.

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Many molecules that bounce around in a space that seems almost unending on Earth - Caroline L.

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Yes, because it takes up space, even if we can't feel it all the time

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Yes, because it takes up space, even if we can't feel it all the time