Smoking and its hazards
Answers are for parents and teachers.
1
Name the toxic gas, the sticky mixture and the addictive substance found in tobacco smoke.
Carbon monoxide (toxic gas), tar (sticky mixture), nicotine (addictive).
2
A bus has 50 seats. Carbon monoxide takes 15 of them. How many are free for passengers? Say how this models haemoglobin.
50 − 15 = 35 seats; haemoglobin has fewer free places for oxygen.
3
Explain why a friend’s smoke can harm you even if you never smoke.
Passive smoking: you breathe the smoke the smoker breathes out and the smoke from the burning tip.
4
A classmate says that vaping is safe. Write two sentences answering kindly.
For example: vaping often contains nicotine and can harm the lungs and heart too. Both ways of smoking are harmful.
5
Write one way smoking affects the environment.
Cigarette butts litter soil and water and leak chemicals.