Atmospheric layers quick check science seven a

Answer 1

Sure! Here’s a quick overview of the Earth's atmospheric layers for a science 7 level:

1. Troposphere:

   • Location: Closest to Earth's surface (up to about 8-15 km high).
   • Characteristics: Weather occurs in this layer; it contains most of the atmosphere's mass and water vapor.
   • Temperature: Decreases with altitude.

2. Stratosphere:

   • Location: Above the troposphere (up to about 50 km high).
   • Characteristics: Contains the ozone layer, which absorbs harmful ultraviolet (UV) radiation from the sun. This layer is more stable, with few clouds.
   • Temperature: Increases with altitude due to ozone absorption of UV radiation.

3. Mesosphere:

   • Location: Above the stratosphere (up to about 85 km high).
   • Characteristics: This is where most meteors burn up upon entering the atmosphere.
   • Temperature: Decreases with altitude, making it the coldest layer.

4. Thermosphere:

   • Location: Above the mesosphere (up to about 600 km high).
   • Characteristics: Contains very thin air; temperatures can reach up to 2,500 °C or more. The Northern Lights (Auroras) occur in this layer.
   • Temperature: Increases significantly with altitude due to absorption of high-energy solar radiation.

5. Exosphere:

   • Location: The outermost layer, starting around 600 km and extending into space.
   • Characteristics: Very thin air, primarily composed of hydrogen and helium; satellites orbit in this layer.
   • Temperature: Can also reach thousands of degrees, but it's not felt due to the low density of particles.

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