Obstructive Properties of Tar

1
Obstructive Properties of Tar

• An Experiment

2
What to do first

• Place the funnel in the jar.
• Line the funnel with filter paper
• Pour water into the filter. Note how quickly it
  flows.

http//www.chem.ubc.ca/courseware/154/tutorials/ex
p4A/crufilt/crufilt-gravity.jpg
3
Try this next

• Remove the wet filter paper from the funnel.
• Get a dry piece of filter paper.
• Spread a thin layer of molasses on one side.
  Place this filter in the funnel.
• Pour water into the funnel.

4
Compare your findings

• Did you notice how quickly the water flows
  through the filter paper?
• Notice how slow the water flows through the
  coated paper.

5
Think about it

• Think about the filter paper representing your
  lung tissue, and the water representing oxygen.

http//www.mamashealth.com/images/lungs1.gif

• The molasses that you used in the second half of
  this experiment represents the tar found in
  tobacco products, like cigarettes and cigars.

This image represents a years worth of tar from
smoking 1 pack of cigarettes per day .
http//www.healthconnection.org/temp/new/product_1
521_1847.html
6

• In healthy lungs, the oxygen is able to pass
  through the lung tissue easier and is available
  for use by your body.

http//www.lungusa.org/site/pp.asp?cdvLUK9O0Eb2
2577
7

• Lungs that are coated with tar do not allow
  oxygen exchange as well as healthy lungs without
  tar.

www.smokerslungs.com/smokers-lungs-12.jpg