Procedure

1. Coat notecard with Petroleum Jelly

2. Place the Plant, notecard, and Cotton Balls in Cubicle

3. Place Coffee Filter on the Ventilation Exit

4. Connect the Flexible Metal Hose to the Cubicle (Testing Metal Chamber)  

5. Connect Muffler of the Car to the Flexible Metal Hose

6. Start Car and Stopwatch For 15 Minutes (15 MIN INTERVALS)

7. Record Data and Differences in the Plants, Cotton Balls, and notecards (Diameter of C.B )