Layers of the Atmosphere

• What is the atmosphere?

  layer of gases that surrounds the Earth
• What are the different components of the Atmosphere?

  Nitrogen, Oxygen, Other Gases
• How many percent is Nitrogen, Oxygen, and Other Gases?

  78% and 21% and 1%
• What is the lowest layer of the Atmosphere?

  Troposphere
• What do you call the boundary zone between the Troposphere and the Stratosphere?

  Tropopause
• What are Jet Streams?

  eastward winds and fast-moving river of air
• What does Tropos mean?

  Change
• What is the second lowest layer of the Atmosphere?

  Stratosphere
• The Stratosphere is ideal for aircraft because of the horizontal direction of air and free from weather disturbances
• Which layer of the Atmosphere contains the Ozone Layer?

  Stratosphere
• What is the purpose of the Ozone Layer?

  Shields the Earth from harmful UV Rays
• What atmospheric instrument can be seen in the Stratosphere?

  Radiosones
• What does Strat mean?


  Layer
• What is the layer under Stratosphere but above Troposphere?

  Ozone Layer
• What is the third layer of the Atmosphere?

  Mesosphere
• What are the characteristics of Mesosphere?

  It is the coldest region, it has thin air and has low atmospheric pressure
• Where do meteors burn up?

  Mesosphere
• What visual phenomenon do meteors create as they burn up?

  Shooting Stars
• What does Meso mean?

  Middle
• Why do meteors burn up in the Mesosphere?

  Because there are enough gases to cause friction and create heat
• What is the topmost part of the Atmosphere?

  Thermosphere
• What is the Thermosphere composed of?

  Individual Gas Molecules
• What lights can you find in the Thermosphere?

  Auroras
• What do you call the Northern Lights?

  Aurora Borealis
• What does the Thermosphere hold?

  Ionosphere
• What do you call the Southern Lights?

  Aurora Australis
• What does Thermo mean?

  Heat
• Thermosphere has extremely high temperature
• What do you call the boundary between the Mesosphere and the Thermosphere?

  Mesopause
• Auroras are brought by charged particles from space that collide with

  atoms
• What is the outermost layer of the Atmosphere?

  Exosphere
• What does the Exosphere mostly contain?

  Hydrogen and Helium Gases
• What human-made objects can you find in the Exosphere?

  Satellites
• What does Exo mean?

  Outside
• Why is the Atmosphere important?

  The atmosphere shields the Earth from incoming ultraviolet (UV) radiation.