Atmosphere Review

In the Earth's atmosphere, the most abundant gas is ______________, making up 78% of its composition.

• nitrogen

• oxygen

• argon

In the composition of Earth's atmosphere, the second most abundant gas is ____________, constituting 21% of the volume.

• nitrogen

• oxygen

• argon

During a hike, which of the four layers of the atmosphere would you be closest to?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Imagine you're planning a journey to space. Which of the four layers of the atmosphere would you encounter last?

• troposphere

• stratosphere

• mesosphere

• thermosphere

5.) Why do coastal areas experience breezes?

• conduction currents caused by cool and warm air

• radiation currents caused by absorbing the sun’s heat

• unequal heating of Earth’s surfaces over large areas

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

On a hot summer day, when the air inside a balloon heats up, the heat energy causes the particles to move ____________________, making the balloon expand.

• more rapidly

• more slowly

• at the same speed

Tags

NGSS.MS-PS1-4

During a hike up a tall mountain, you notice changes in your surroundings as you ascend. This is because the atmosphere is divided into different layers by how the ____________________ changes with altitude.

• temperature

• air pressure

• density

• climate

8.) Lia lives in the mountains of Colorado. Her aunt came to visit and had difficulty breathing for a few days until she adjusted to the higher altitude. Which explanation best describes the reason for this difficulty?

• Decreased air pressure causes the density of air to increase at higher altitudes.
• Decreased air pressure causes the density of air to decrease at higher altitudes.
• Increased air pressure causes the density of air to increase at higher altitudes.

9.) When hiking up a mountain, what do the changes in the surrounding air illustrate about altitude?

• Air pressure increases at higher altitudes.

• Air density decreases at higher altitudes.

• There is a greater gravitational pull on air molecules at higher altitudes.

Global winds occur due to uneven heating over a large area, such as when the equatorial regions receive more sunlight and heat compared to the poles, leading to _______________ caused by cool and warm air.

• heat currents

• convection currents

• local winds

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6