Unit 3: Health Education Unit 3: Health Education
Harmful Substances
Harmful Substances
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 Lesson4:HarmfulSubstances:Tobacco,Alcoholand
Organic Solvents
1. Tobacco: Smoking Tobacco
Activity1:Observeatthepicturesandanswerthequestionsthatfollow:
Picture A Picture B
a. How are the teeth in Picture A?
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b. How are the teeth in Picture B?
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c. Which picture shows the teeth of a smoker?
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d. Can you say what has happened to the smoker’s teeth?
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e. What must be done?
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Let’s
Learn