Activity: “Tar & Breathing: Why they Don’t Mix”
Supplies needed: 2 coffee filters, water, funnel, clear jar or beaker, blackstrap molasses or other tar-like substance
Optional lending library items: Smoked Lung Model, Lou Wheeze Smoker’s Lungs Comparison Model, Cough Up a Lung Model
Purpose: to demonstrate how an accumulation of tar can inhibit the absorption of oxygen.
1. Place the funnel in the jar or beaker and line with coffee filter.
2. Pour water through the funnel. Note how quickly the water runs through.
3. Remove the wet filter.
4. Coat another filter with molasses or other tar-like substance and place it in the funnel.
5. Pour water into the funnel. Note how slowly the water runs through.
- The filter paper represents lung tissue
- The water represents oxygen
- The molasses or tar-like substance represents tar
- Lungs coated with tar do not exchange oxygen as well as healthy lungs
Activity: “Carbon monoxide simulation”
Supplies needed: ½ tsp of coffee grounds, food coloring (blue or green work best), eye dropper or small straw to deliver a drop of food coloring, small clear bottle with lid about 2/3 full of water
Optional lending library items: Lou Wheeze Smoker’s Lungs Comparison Model
Purpose: to provide a demonstration of how carbon monoxide mixes in the blood stream.
1. Place coffee grounds in bottle of water, shake vigorously.
2. Note how the coffee colors the water very slowly.
*The coffee represents oxygen in the blood.
3. Using same bottle of water (now colored with coffee grounds), add one drop off food coloring.
4. Note how quickly the food coloring colors the water.
*The food coloring represents carbon monoxide as it enters the bloodstream.
- Carbon monoxide (CO) is a by-product of smoking.
- CO is an odorless, colorless gas that reduces oxygen levels in the blood.
- CO is the same deadly gas found in car exhaust fumes.
- CO is picked up in the blood 240 times faster than oxygen.
Back to Tobacco Lending Library