Fill in the blanks.
Air is ____ near the surface of the earth but as we move up, the density of air ____ .
Answers
Explanation:
Air Pressure and Density
in the Atmosphere
As you travel further from the Earth’s surface, the atmosphere changes.
There are different layers of the atmosphere that have various properties such as
temperature, density, pressure, etc. Have you ever flown in an airplane? If so,
you’ve probably experienced air pressure shifts when suddenly your ears feel
clogged or they “pop”! Air pressure (also known as barometric pressure) is the
weight (or force) of the atmosphere pressing down on any given surface of the
Earth. The closer to the Earth’s surface, the greater the weight (or force) of the
atmosphere because air near the surface has ALL air above it pushing down on it.
As an airplane travels higher into the atmosphere, air pressure decreases.
The higher an airplane goes, the less dense the atmosphere becomes.
Density is how compact the molecules are in a solid, liquid, or gas. Our atmosphere
is made of millions of tiny gas molecules. Gasses in our atmosphere include
nitrogen, oxygen, argon, and carbon dioxide. These gas molecules are free to move
about and shift around. The more compact (or close) those molecules are to each
other, the more dense the atmosphere. As you travel away from the Earth’s
surface, the atmosphere expands the further you go. That expansion (more space)
allows gas molecules to spread out resulting in the atmosphere becoming less dense.
Air pressure and density work and change together as you enter
different layers of the atmosphere. As the atmosphere expands the further you
get from the Earth’s surface, it becomes less dense and air pressure decreases. As
you increase altitude (distance from Earth’s surface) in an airplane, air pressure
changes. When that change occurs, the air that is trapped inside your inner ear
presses on your ear drum causing a feeling of hearing loss. As you ascend, that
pressure causes your ear drum to push outward which causes your ears to “pop”.
On Earth’s surface, air pressure changes also tell you when a change in
the weather is on the way. Generally, if air pressure is falling a storm is on its
way. When air pressure rises, fair weather is coming. If air pressure remains
steady, the weather you are currently having remains the same. Differences in air
pressure also result in wind. Air moves from areas of high pressure to areas of low
pressure and the greater difference in air pressure, the faster the wind blows.
Air Pressure and Density
in the Atmosphere
As you travel further from the Earth’s surface, the atmosphere changes.
There are different layers of the atmosphere that have various properties such as
temperature, density, pressure, etc. Have you ever flown in an airplane? If so,
you’ve probably experienced air pressure shifts when suddenly your ears feel
clogged or they “pop”! Air pressure (also known as barometric pressure) is the
weight (or force) of the atmosphere pressing down on any given surface of the
Earth. The closer to the Earth’s surface, the greater the weight (or force) of the
atmosphere because air near the surface has ALL air above it pushing down on it.
As an airplane travels higher into the atmosphere, air pressure decreases.
The higher an airplane goes, the less dense the atmosphere becomes.
Density is how compact the molecules are in a solid, liquid, or gas. Our atmosphere
is made of millions of tiny gas molecules. Gasses in our atmosphere include
nitrogen, oxygen, argon, and carbon dioxide. These gas molecules are free to move
about and shift around. The more compact (or close) those molecules are to each
other, the more dense the atmosphere. As you travel away from the Earth’s
surface, the atmosphere expands the further you go. That expansion (more space)
allows gas molecules to spread out resulting in the atmosphere becoming less dense.
Air pressure and density work and change together as you enter
different layers of the atmosphere. As the atmosphere expands the further you
get from the Earth’s surface, it becomes less dense and air pressure decreases. As
you increase altitude (distance from Earth’s surface) in an airplane, air pressure
changes. When that change occurs, the air that is trapped inside your inner ear
presses on your ear drum causing a feeling of hearing loss. As you ascend, that
pressure causes your ear drum to push outward which causes your ears to “pop”.
On Earth’s surface, air pressure changes also tell you when a change in
the weather is on the way. Generally, if air pressure is falling a storm is on its
way. When air pressure rises, fair weather is coming. If air pressure remains
steady, the weather you are currently having remains the same. Differences in air
pressure also result in wind. Air moves from areas of high pressure to areas of low
pressure and the greater difference in air pressure, the faster the wind blows.
Answer:
Air is the near the surface of the earth but as we move up the density of air nature