What are some of the reasons why people start smoking? How does smoking affect other body systems? Identify two technologies developed to help people quit smoking. When smokers quit smoking, their risk of developing lung cancer lessens over time. Explain this. What are some of the immediate health benefits of giving up smoking? Find out what causes smoking to become addictive.
Make a poster, pamphlet or multimedia presentation to raise awareness of the health risks of smoking.
Fig. 11 Healthy lung tissue.
Fig. 12 The lung tissue of a smoker.
Nature of Science
In this chapter you worked like a scientist by constructing a model of the respiratory system to demonstrate inhalation and exhalation. You also researched the effect of smoking on health, and organised and communicated your research in a way that was suitable for presentation to your classmates. Question: Do you think the way that scientific information is presented to a particular audience is important? Compare how you would present research on a scientific issue to your classmates and to the head of an important company.
