Create a working model of the lungs using the following items:
  • clear plastic soft drink bottle
  • 2 balloons
  • 2 rubber bands
  • plasticine or blu-tack
  • scissors
  • 2 plastic drinking straws
Bell_jar_lungs.png

The job of the respiratory system is to exchange gases with the outside environment - oxygen must be absorbed from the air and carbon dioxide must be released from the body. The respiratory system works best when it has a large surface area and close connections with the circulatory system.

respiratory_system.jpg
Respiratory System

Trachea
Bronchus
Lungs
Alveoli