Download 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