One Nostril at a Time: teacher key

Boogers and Snot, grade 6 edition, written for 6th grade. You breathe mostly through one nostril, and the busy side switches. Read how the nose makes, moves and uses mucus, and why pollen can start a flood.

Read the book. Print this page for the key.

Questions and answers

1. What is the nasal cycle?
   • A kind of cold
   • The busy nostril switches back and forth (answer)
   • A way to blow your nose
2. About how often does the busy side switch?
   • About every two minutes
   • About every two days
   • About every two hours (answer)
3. What does histamine cause?
   • A runny nose, sneezing and swelling (answer)
   • Fever
   • Stronger cilia
4. Why do the cilia need the watery layer?
   • To make salt
   • So they can beat (answer)
   • To hold antibodies
5. What does mucus meet when we swallow it?
   • Salt
   • Pollen
   • Stomach acid (answer)
6. What does nasal mean?
   • Of the nose (answer)
   • Of the throat
   • Of the hands

Words

• histamine: allergy chemical
• cilia: tiny sweeping hairs
• nasal: of the nose
• pollen: plant powder
• antibodies: germ finders