Why Do Our Noses Run in the Cold?

The video humorously describes a runny nose scenario on a first date, explaining the biological and physical reasons behind it. Biology causes increased mucus production to warm and moisturize cold air, while physics explains how exhaled water vapor condenses into droplets on the nose. The video suggests that next time, a less embarrassing activity like bowling might be a better choice.

What two scientific fields are responsible for the runny nose described in the video?

• Biology and Chemistry

• Physics and Mathematics

• Chemistry and Physics

• Biology and Physics

Why does the nose produce more mucus in cold weather?

• To increase blood flow to the brain

• To prevent sneezing

• To warm and moisturize the cold, dry air

• To make breathing more difficult

What is the primary composition of mucus?

• Salts, enzymes, and amino acids

• Proteins, carbohydrates, and fats

• Water, sugars, red blood cells, and lipids

• Water, salts, white blood cells, and glycoproteins

How does the physics of exhaled air contribute to a runny nose?

• The air becomes warmer and evaporates

• The air cools down and forms water droplets

• The air heats up and dries the nose

• The air remains unchanged

What humorous suggestion is given at the end of the video?

• Stay indoors

• Wear a mask

• Go bowling

• Go skiing instead