The layers of the air

Grade 6 Science Worksheet

Circle the best answer.

1. 1.

   Ari lists the layers from the ground up. Which list is in the right order?

   • Troposphere, stratosphere, thermosphere, mesosphere, exosphere
   • Stratosphere, troposphere, mesosphere, thermosphere, exosphere
   • Troposphere, mesosphere, stratosphere, thermosphere, exosphere
   • Troposphere, stratosphere, mesosphere, thermosphere, exosphere
2. 2.

   Which layer lies between the stratosphere and the thermosphere, Bo?

   • Exosphere
   • Troposphere
   • Mesosphere
   • Ozone layer
3. 3.

   Which layer is the outermost one, fading away into space, Esme?

   • Stratosphere
   • Mesosphere
   • Thermosphere
   • Exosphere

4. Read this first

   Use this

   Cross-section of the atmosphere, not to scale.

6. 4.

   Using the cross-section, about how high is the top of layer B, Jun?

   • About 10,000 km
   • About 50 km
   • About 80 to 85 km
   • About 10 to 12 km
7. 5.

   A weather balloon climbs above the clouds to about 35 km before it bursts. Which layer is it in then, Kira?

   Use the picture in question 4.

   • Stratosphere
   • Thermosphere
   • Troposphere
   • Mesosphere
8. 6.

   A small research rocket samples the air about 70 km up. Which layer is that, Luz?

   Use the picture in question 4.

   • Stratosphere (layer B)
   • Mesosphere (layer C)
   • Exosphere (layer E)
   • Thermosphere (layer D)
9. 7.

   A weather balloon carries a thermometer up through the stratosphere. What happens to the air temperature around it, Milo?

   • It stays at 0 °C
   • It falls to the coldest on Earth
   • It rises
   • It falls, as in the troposphere
10. 8.

    Brrr! Near the top of which layer is the coldest air in the atmosphere, Noah?

    • Mesosphere: about −85 to −90 °C
    • Troposphere, as it touches the ground
    • Thermosphere, as it is higher up
    • Exosphere, as it is the highest
11. 9.

    Astronauts live on the International Space Station. In which layer does the station orbit, Tala?

    • Thermosphere
    • Troposphere
    • The ozone layer
    • Mesosphere
12. 10.

    Noctilucent clouds, the highest clouds of all, glow after sunset near the poles. In which layer do they form, Zee?

    • Exosphere
    • Troposphere, where most clouds form
    • Mesosphere
    • Stratosphere