2. LEFT CLICK OR PRESS SPACE BAR TO ADVANCE, PRESS P BUTTON TO GO BACK, PRESS ESC BUTTON TO END LEFT CLICK OR PRESS SPACE BAR TO ADVANCE, PRESS P BUTTON TO GO BACK, PRESS ESC BUTTON TO END COMPUTER PRESENTATIONS FOR KS3 SCIENCE - BIOLOGY ©2003, STEVE PARKER COMPUTER PRESENTATIONS FOR KS3 SCIENCE - BIOLOGY ©2003, STEVE PARKER

3. 1 1 KS3 SCIENCE - BIOLOGY KS3 SCIENCE - BIOLOGY Tobacco, Alcohol & Drugs Tobacco, Alcohol & Drugs

4. SMOKING 2 2

5. 3 3 Smoking poisons the Red Blood Cells so that they cannot move oxygen around Smoking poisons the Red Blood Cells so that they cannot move oxygen around

6. SMOKING 4 4 Tar coats the linings of the Lungs and can cause Cancer Tar coats the linings of the Lungs and can cause Cancer

7. SMOKING 5 5 More Mucus is produced and Cilia stop pushing the mucus up out of the lungs, so a cough develops More Mucus is produced and Cilia stop pushing the mucus up out of the lungs, so a cough develops

8. SMOKING 6 6 Nicotine is an addictive Drug which narrows the Arteries and can cause Heart disease Nicotine is an addictive Drug which narrows the Arteries and can cause Heart disease

9. SMOKING 7 7 Some people think that smoking is “cool”, but it does a lot of harm, and most people find it quite disgusting Some people think that smoking is “cool”, but it does a lot of harm, and most people find it quite disgusting

10. ALCOHOL 8 8

11. 9 9 Alcohol is found in beers wines and spirits and many people drink it socially - however, alcohol can still be dangerous Alcohol is found in beers wines and spirits and many people drink it socially - however, alcohol can still be dangerous

12. ALCOHOL 10 Alcohol is a depressant - it impairs judgement leading to accidents and it can damage Brain Cells permanently Alcohol is a depressant - it impairs judgement leading to accidents and it can damage Brain Cells permanently ? ?

13. ALCOHOL 11 Alcohol can poison the Liver, causing a disease called Cirrhosis Alcohol can poison the Liver, causing a disease called Cirrhosis

14. ALCOHOL 12 Alcohol can become addictive long before the person concerned realises it Alcohol can become addictive long before the person concerned realises it

15. ALCOHOL 13 There may be pressure from friends who think it’s fun to get drunk even if you don’t want to There may be pressure from friends who think it’s fun to get drunk even if you don’t want to

16. DRUGS 14

17. DRUGS 15 Anything which affects the way the body works is a Drug - this includes medicines, which are very dangerous unless used in the way you are told by a doctor Anything which affects the way the body works is a Drug - this includes medicines, which are very dangerous unless used in the way you are told by a doctor

18. Fumes from household solvents are sometimes breathed in by teenagers Fumes from household solvents are sometimes breathed in by teenagers Solvents slow down breathing and Heart rate, may cause loss of control and can damage the Lungs, Liver and Kidneys Solvents slow down breathing and Heart rate, may cause loss of control and can damage the Lungs, Liver and Kidneys DRUGS 16

19. DRUGS 17 Some drugs are illegal, and are taken by people as a stimulant or to create hallucinations Some drugs are illegal, and are taken by people as a stimulant or to create hallucinations

20. DRUGS 18 Illegal drugs can cause overheating, dehydration, or addiction, and they often get you into trouble and mess up your relationships and your life Illegal drugs can cause overheating, dehydration, or addiction, and they often get you into trouble and mess up your relationships and your life

21. DRUGS 19 Some young people think that taking drugs makes them look “hard”, but if you have to harm yourself to impress others, doesn’t that make you pathetic? Some young people think that taking drugs makes them look “hard”, but if you have to harm yourself to impress others, doesn’t that make you pathetic?