Transcript Drugs
GCSE Core Science Human Biology Illegal, addictive, withdrawal, recreational, indigenous (people native to an area eg aborigines) GCSE Core Science Objectives Human Biology By the end of the lesson I: •Know that all drugs cause problems whether they are legal or illegal •Describe different types of drugs and why some people use them for recreational drugs •Know the difference between recreational and medicinal drugs • Explain that drugs change the chemical processes in the body and that in some cases that can lead to addiction • Can explain what a gateway drug is and how cannabis can cause psychological problems. •Know that the overall effect of legal drugs on health is far worse than the effect of illegal drugs GCSE Core Science Starter Human Biology What is a drug? Name 1 that is legal Name 1 that is illegal http://www.youtube.com/watch?v=4jH1zql_fQI I know that all drugs cause problems whether they are legal or illegal GCSE Core Science Task One Human Biology •A drug is any chemical that alters how our body works. •Drugs that affect our CNS control the movement of chemicals across the synapse. These are called recreational drugs eg hallucinogens •The natural chemicals in our nervous system have shapes that fit like a key in a lock . •Drugs have a similar shape to these chemicals and mimic (copy) what they do. I can describe different types of drugs and why some people use them for recreational drugs GCSE Core Science •Stick this table into your books and use it to answer the following questions… Task Two Human Biology I can describe different types of drugs and why some people use them for recreational drugs GCSE Core Science Task Two Human Biology 1) If you have a headache you might take paracetamol or aspirin. a)Why do you take the drug? b)What type of drug are they? c)How do they stop the aching? 2) In the second world war some pilots were given amphetamines. a)Suggest why they were given the drug. b)how did the drug help them fly better? 3) Which type of drug might a doctor give to somebody who is: a)Always tired b)suffering from stress c)in pain? I know the difference between medicinal and recreational drugs I know that the overall effect of legal drugs on health is far worse than the effect of illegal drugs GCSE Core Science Human Biology A medicinal drug is taken to cure and/or alleviate any symptoms of an illness or medical condition, or may be used as a preventive. Many problems today are caused by legal drugs eg tobacco and alcohol BECAUSE they are so widely ABUSED! used AND I can explain that drugs change the chemical processes in the body and that in some cases that can lead to addiction GCSE Core Science Task Three Human Biology The effects of different drugs Some drugs change the chemical processes in your body so that you become addicted – dependant on them. This enters you into a downward spiral of negative effects. What is this cycle? ACHES, PAINS, HEADACHE, SWEATING, SHAKING, CRAVING. These are called withdrawal symptoms I can explain what a gateway drug is and how cannabis can cause psychological problems. GCSE Core Science Human Biology Use page 49-51 of the textbook to write an explanation paragraph on ‘What is the problem with drug abuse?’ You may want to use question 2 and 3 to help construct your answer GCSE Core Science Objectives Human Biology By the end of the lesson I: •Know that all drugs cause problems whether they are legal or illegal •Describe different types of drugs and why some people use them for recreational drugs •Know the difference between recreational and medicinal drugs • Explain that drugs change the chemical processes in the body and that in some cases that can lead to addiction • Can explain what a gateway drug is and how cannabis can cause psychological problems. •Know that the overall effect of legal drugs on health is far worse than the effect of illegal drugs