Atmosphere Layers Flashcards

What is the first layer of the atmosphere called?

What layer of the atmosphere do jets fly in?

The ozone layer is found in the troposphere.

What layer is known for meteor activity?

What phenomena can be observed in the thermosphere?

What is the last layer of the atmosphere called?

Air molecules in the exosphere are densely packed.

The top of the troposphere is called the ______.

As you go up in the stratosphere, temperatures ______.

The top of the mesosphere is called the ______.

Layers of the Atmosphere

Troposphere
- First layer where life exists; weather phenomena occur.
- Encompasses the region we inhabit and breathe.
- Top boundary called the tropopause; temperatures decrease with altitude.
Stratosphere
- Second layer, characterized by a lack of weather conditions.
- Commercial jets typically fly at this altitude for smoother travel.
- Contains the ozone layer which protects Earth from harmful UV radiation.
- Top boundary known as the stratopause; temperatures increase with altitude.
Mesosphere
- Middle layer, noted for strong winds and the disintegration of meteors.
- Highest atmospheric layer where temperature decreases with altitude.
- Top boundary is the mesopause.
Thermosphere
- Fourth layer primarily known for the presence of the ionosphere.
- Ionosphere reflects radio waves, enabling radio communication.
- Home to the northern lights (auroras), resulting from solar activity.
- Temperatures rise significantly as altitude increases.
Exosphere
- Final layer, where air molecules are sparse enough for spacecraft to navigate.
- Transition zone between Earth's atmosphere and outer space.
- Temperature continues to increase with altitude but contains very few particles.

Explore the five layers of the atmosphere with these informative flashcards. Each card dives into the unique characteristics of a layer, including the Troposphere, Stratosphere, and Mesosphere. Perfect for enhancing your understanding of Earth's atmospheric structure.