What does popping bubble wrap have to do with science? Actually, it demonstrates an important scientific law, called Boyle’s law. Like other laws in science, this law describes what always happens under certain conditions. Boyle’s law is one of three well-known gas laws, which state the relationships among temperature, volume, and pressure of gases. (The other two gas laws are Charles’ law and Amontons’ law.) According to Boyle’s law , if the temperature of a gas is held constant, then decreasing the volume of the gas increases its pressure—and vice versa. That’s what happens when you squeeze the bubbles of bubble wrap. You decrease the bubbles' volume, so the air pressure inside the bubbles increases until they pop.
Ryan and Krista are both traveling from Ohio to Florida. Ryan doesn't like to fly in airplanes, so he decides to drive. Krista prefers less travel time, so she chooses to fly. Since Ryan is staying on the ground, the air pressure around him will remain constant throughout his trip. On the other hand, Krista will experience a change in air pressure from high pressure to low pressure as the plane ascends.
Who is more likely to experience popping in their ears, Ryan or Krista?