WONDER #1866: Can You See the Wind?

Question 1 of 3

Air is invisible in large part because it is a what?

  1. solid
  2. liquid
  3. gas
  4. plasma

Question 2 of 3

Gas molecules are what compared to the average wavelength of visible light?

  1. smaller
  2. larger
  3. bigger
  4. greater

Question 3 of 3

At sea level, the average weight of the air above you is approximately how many pounds per square inch?

  1. 100
  2. 50
  3. 25
  4. 14.7

Check your answers online at https://wonderopolis.org/wonder/can-you-see-the-wind.