2. Chest Lung Model

6. 1.Half plastic softdrink bottle with capcap cap. 2. drinking straw, rubber band, clay. 3. plastic ice candy bag/rubber balloon balloon. 4. plastic bag 5. scotch tape and scissors

7. 1. Put the plastic straws in the shape shape of y. Tie the two balloons balloons to the ends of the plastic straws with rubberban rubberbands. 2. Insert the y-tube inside the plastic bottle.Place the cap and put the clay. 3. Put the plastic bag on the other end of the bottle with with scotchtape.

8. 1. What happens to the balloons when you pull the rubber sheet downward? 2. Describe the balloons as push the rubber sheet upward? 3. What does your model set-up represents?

9. Draw the Respiratory System, draw arrows to trace the path of air inside the lungs.